• Fatigue rated at 1-1/2 times the Working Load Limit at 20,000 cycles. SURFACE FINISHES . White zinc-plated lifting eye bolts and lifting eye nuts (minimum 8 microns) and hot-dip galvanised lifting eye bolts and lifting eye nuts (minimum 78 microns) are also ready for immediate delivery. The eye bolts are available in various working load limit to lift different weights. This calculator can be used as an aid to help estimate the weight of bolts, nuts, and washers. Learn more about our eye bolts including eye bolt capacity and eye bolt sizes. Use a spreader bar with regular (non-shoulder) eye bolts to keep the lift angle at 90° to the horizontal. Just as important as choosing the correct eye bolt, properly installing and maintaining it is just as critical to ensuring workplace safety. The image below shows markings and specifications that are common across all types of eye bolts. p A. allowable thread pressure (nut) E 1. elasticity module of bolt . Eye bolts have a shank for anchoring to structures or equipment and a ring for attaching rope, hooks, or other hardware. This drop forged collared eye bolt is available in sizes ranging from M06 to M36.Use the drop-down menu to select your required size before adding to basket. Use eye bolts at a horizontal angle greater than 45°. It is very important that riggers understand the angular loading of lifting eye bolt capacity chart to make their lift safely: The correct installation of eye bolts is same important as choosing eye bolt, here are some tips for installation: We hope this article can help you with the selection and installation of eye bolts. • Conventional eye bolts should be used for straight vertical lifts only. Never use eye bolt if eye or shank is bent or elongated. Working Load Limits for eye bolts are based on a straight vertical lift in a gradually increasing manner. Eye Bolts (eyebolts) and Eye Nuts (eyenuts) are also commonly known in the lifting industry as lifting eyes. Working load limits for eye bolts are based on a straight vertical lift in a gradually increasing manner. • The bolts are subjected to shear or tension loading. The area of bolt available for use by a shear plane will depend on whether or not the shear plane is in a region of the bolt that is threaded. Avoid rotating movement during transport. 4, while the deformed shapes of some of the shackle components are as displayed in Fig. It will bend and break if loaded at the side or angular loading, so it is not recommended for angular loading. This calculator can be used as an aid to help estimate the weight of bolts, nuts, and washers. The Bolted Joint Analysis calculator allows for stress analysis of a bolted joint, accounting for preload, applied axial load, and applied shear load. To learn more call us directly at 800-431-4350 today. Comments for this post are closed. The bolt weight calculator is a derived application or tool to assist the customers in knowing the bolt weight. SURFACE FINISHES . They feature the simplest design but made from forged steel that has been quenched and tempered, commonly consisting of a threaded shank with a ring or eye at one end, can be threaded to structures such as wood, steel or concrete, and often lock by a nut. Assembly Safety: Never exceed Work Load Limits specified in Tables 1 & 2. So, they don’t have a working load limit assigned to them because they are not possible to determine the various densities and conditions of the wood the eye bolts are screwed into. Shoulder eye bolt is also known as collared eye bolt, features a supporting shoulder or collar to provide more stability to the base of the eye, so that can be loaded with slings at angles or with any kind of angular loading, but the capacity will be lost at different angles loading, and make sure that the shoulder eye bolt is installed properly. Non-machined lifting eye bolts and lifting eye nuts are usually supplied as semi-finished forged pieces (sand-blasted). They are designed to create a lifting eye through rope, cable, or shackles that can be secured for their safe working load. Bolt torque calculator metric (vdi 2230) Bolt torque calculator metric. How to calculate eye bolt capacity? It can only be used for completely vertical straight line straight line pulls or supporting an overhead load only. Always insure hoist ring is free to align itself with sling. Always tighten nuts securely against the load. title: technical collared eyebolt working load chart keywords: technical collared eyebolt working load chart created date: 20140530113853z tured pad eye specimens are shown in Fig. Most accurate bolt torque calculator given its geometry and thread diameter, using vdi 2230 standard, Screw Clearance through the specific tool 3D model. Instructions Formula Send us your comment. Always use shoulder nut eye bolts for angular lifts. 2. An over-torqued bolt that is stretched beyond its elastic limit is severely weakened, diminishing its effective load capacity. 501-600: DIN 525 - Weld Studs With Hexagon Nuts; DIN 529 A - Anchor Bolts (Stone Bolt) DIN 529 B - Anchor Bolts (Stone Bolt) - In most bolted connection, the bolts are subjected to shear. The third factor to consider when selecting the correct eye bolt for a lift is to take … The following procedure describes how to verify the strength of the lifting eye Design load (P) = Safe Working Load (SWL) x Dynamic coefficient (Dynamic coefficient is taken as 1.3. recommended by Classification society rules) Allowable stress Click here for more information. If the shoulder is not completely flush, it can only be used for vertical lifts, equal to regular eye bolt. Then they are anodized, hot-dip galvanised, or plated (gold, zinc, or tin) even phosphate coating finishes, which can effectively prevent corrosive substances from coming into contact with the carbon steel, and improve corrosion resistance. 5. If an angular lift is required, a properly seated shoulder pattern eye bolt must be used. So it is important not to exceed eye bolt capacity, which refers to the load a single eye bolt can lift when the load is applied through the shank of the eye bolt vertically. Thickness of spacers must exceed this distance between the bottom of the load and the last thread of the eye bolt. Yield strength . Both lateral (single and double shear) and withdrawal capacities can be determined. This calculator assumes standard bolt holes, with members stressed only in shear (i.e., with no tension resisted by the bolts). 45 degrees makes for 30% of the original rated capacity. The load capacity is marked on the Hoist Ring. Use eye bolts at a horizontal angle greater than 45°. Example: 3/4-10 shoulder eye bolt @ straight pull = 6000lbs. Quenched & Tempered • Design Factor 5/1. Shoulder Nut Eye Bolt ---Installation for Angular Loading. June 22, 2017 July 25, 2017 / By Dan Rose / 0 Comments. Lift eye bolts are rated for vertical lifting up to their specified capacity. White zinc-plated lifting eye bolts and lifting eye nuts (minimum 8 microns) and hot-dip galvanised lifting eye bolts and lifting eye nuts (minimum 78 microns) are also ready for immediate delivery. The Bolt Pattern Force Distribution Calculator allows for applied forces to be distributed over bolts in a pattern. Always be sure threads on shank and receiving holes are clean. k s. safety factor (The value is selected according to the required safety level of the joint.) See below. † Never machine, grind, or cut eye bolt. The general hardness of a U-bolt is usually not a consideration in the service life as there is often no wear involved. The 12.9 bolt is a higher tensile bolt made from alloy steel that is quenched and tempered. See the reference section … We make different from other suppliers. Always be sure threads on shank and receiving holes are clean. REGULAR NUT EYE BOLTS G-291. The diameter of the shank (A) and length of the shank (B) is the most important aspect for eye bolts because they will infect the working load limit and thickness of the material that the eye bolt will be installed into. © 2020 Certified Slings & Supply®, All rights reserved. VRS High Capacity Eye bolts can be adjusted to the direction of pull. The following procedure describes how to verify the strength of the lifting eye Design load (P) = Safe Working Load (SWL) x Dynamic coefficient (Dynamic coefficient is taken as 1.3. recommended by Classification society rules) Allowable stress In the table, As has been taken as equal to At . Both lateral (single and double shear) and withdrawal capacities can be determined. Eye Bolts should be screwed fully down to the face of the lifted load; however, excessive tightening of the Eye Bolt should be avoided. At 15 degrees, the working load limit is reduced by 20% and the effective working load limit of the eye bolt becomes 1240 pounds, which is 80% of the original rated capacity. Working load limits for eye bolts are based on a straight vertical lift in a gradually increasing manner. 2)For stripper bolts and others which are subjected to tensile impact loads, the selection is made based on the fatigue strength. Click here for more information. † Always be sure threads on shank and receiving holes are clean. White zinc-plated lifting eye bolts and lifting eye nuts (minimum 8 microns) and hot-dip galvanised lifting eye bolts and lifting eye nuts (minimum 78 microns) are also ready for immediate delivery. Complies with the machinery directives 2006/42/EG; Also available in imperial and special threads. About this Calculator What is it for? All Bolts Hot Dip galvanized after threading (UNC). - You can calculate the shear strength or the tensile strength of a bolt • Simple connection: If the line of action of … – Wire Rope Basics For You, How To Install A Wire Rope Ferrule & End Stop(Infographic). Bolt capacity is based on the smaller of bolt shear and material bearing capacities, and, if desired, is adjusted based on bolt spacing (i.e., reductions in capacity are possible when bolt spacing is less than optimal). Higher load capacities than DIN 580-Eye bolts. Before lifting check the tightness of the eye bolt and nut! Use a spreader bar with regular (non-shoulder) eye bolts to keep the lift angle at 90° to the horizontal. mean bolt diameter . Assembly Safety: Never exceed Work Load Limits specified in Tables 1 & 2. Check the thickness of the material, then choose the right the eye bolt with enough length to go through. The lift capacity of a shoulder eye bolt is shown to be reduced by 75% when used at a 45 degree angle. lower load capacity • Tighten hex nut so that ring's thrust surface is fully CORRECT INCORRECT The force on each hoist ring is not just the total weight divided by the number of hoist rings. • Is the hoist ring free to swivel and pivot? Make sure load is evenly distributed. For angular lifts, adjust working load as shown above. P S = p s A s. where: p s is the shear strength of the bolt A s is the shear area of the bolt. ; Available in a wide range of metric and imperial sizes, aswell as high tensile steel or stainless steel. PadEyes uses the compatibility of a well-known shackle design⁽¹⁾ to dimension a suitable mating padeye.. High strength black bolts (grade 8.8) may also be used in connections in which the bolts are tightened snug fit. • Conventional eye bolts should be used for straight vertical lifts only. Click here to register now! Angular Loading of Eye Bolts and Rated Capacity. So it is important not to exceed eye bolt capacity, which refers to the load a single eye bolt can lift when the load is applied through the shank of the eye bolt vertically. Important: The working load limits on this page apply only to machinery eye bolts and machinery eye bolts with shoulders.The working load limits for regular forged eye bolts can be found on our Forged Eye Bolt Working Load Limits page.. The force will be greater at lower lift angles. Nuts and bolts are the glue that hold together our mechanical contraptions. The bolt cross sectional area is critical to the prior calculation. Non-machined lifting eye bolts and lifting eye nuts are usually supplied as semi-finished forged pieces (sand-blasted). Click here for more information. December 15, 2020 Rigging Accessories The eye bolts are available in various working load limit to lift different weights. See the instructions within the documentation for more details on performing this analysis. Crosby® Shoulder Eye Bolt and Swivel Hoist Ring Load Limits, Rigging & Lifting Warnings and Information, Take it with you - Get Our Load Limit App. Use a swivel hoist ring for angled lifts. Never machine, grind or cut eye bolt. Sling strength at 45° is 71% of vertical sling capacity. Assure a plane bolting surface. The tension capacity of the bolt is given by: P nom = 0.8p t A t Nominal . Where: p t is the tension strength of the bolt. Lifting capacity per eye bolt, with bolt fitted at sides of load, ≤ 45° Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH,Burggrafenstraße 6, 10787 Berlin, Germany. 5 LOAD CAPACITY: NUMERICAL APPROACH This section describes the details of the FE simulation and the load capacity estimation of same pad eyes, which have a SWL of 3.25 tons. † Never use eye bolt that shows signs of wear or damage. Always apply load to eye bolt in the plane of the eye. Sling strength at 45° is 71% of vertical sling capacity. Demonstrate how to calculate the load on the sling using the load angle factor for various load angles. † Never use eye bolt if eye or shank is bent or elongated. Newsletter Archive; Categories. Just as important as choosing the correct eye bolt, properly installing and maintaining it is just as critical to ensuring workplace safety. In these bearing type of connections, the plates are in firm contact but may slip under loading until the hole surface bears against the bolt .The load transmitted from plate to bolt is therefore by bearing and the bolt is in shear. Furnished with standard Hot Dip galvanized hex nuts. These simple devices are one of the most important inventions of the mechanical age. We provide it as a resource for our customers, because the weight of a bolt or assembly is often needed when calculating shipping costs, or jobsite delivery requirements. Never use eye bolt that shows signs of wear or damage. The best way to understand eye bolt is from the eye bolt sizes, it should be taken from directly underneath the eye, for there are different types in the lengths of the shank. Never use eye bolt if eye or shank is bent or elongated. Always tighten nuts securely against the load. To learn more call us directly at 800-431-4350 today. Stripper bolt material: 4137 33~38 HRC, strength class 10.9.) From the table at right, for a strength class of 10.9 and a maximum allowable Click here to register now! SURFACE FINISHES . ・Swivel Lifting Eye Bolt is available to rotate 360°against the heavy lift shaft. Eye bolt strength at 45° horizontal angle drops down to 30% of vertical lifting capacity. P t = p t A t Exact . An under-torqued bolt or screw will allow negligible separation between the workpieces, which seems trivial at first, but after consistent dynamic loading or other operating stresses, the gap between workpieces will grow. The swivel hoist ring will adjust to any sling angle by rotating around the bolt … December 18, 2020 See the instructions within the documentation for more details on performing this analysis. For angular lifts, shoulder eye bolts are the better choice. 3. They're used as anchor eye bolts for routing or tying down wire and cable. Products Is there any guidance on how to calculate shear and tensile capacities for bolts in tapped holes? Hilifting is China’s leading rigging, lifting, material handling, and associated product supplier and manufacturer with over 20 years of experience. Unlike DIN 580 lifting eye bolts, the GN 581.5 lifting ring bolt is captively mounted in the ring housing, yet rotates freely. Thread Diameter. Latest News. Identify the components and describe the characteristics of wire rope and synthetic slings. Variety of shapes and designs such as DIN standard eye bolts, Collar BS4278 Standard Eyebolts, Long Shank, Dynamo type and Eyebolts with built-in Oval Links. Use eye bolts at a horizontal angle greater than 45°. It should not be possible to enter a 0.04 mm feeler gauge at any position between the collar of an Eye Bolt and its seat-ing. Ensure the eye bolt is bolted down flush to the surface! Fatigue rated at 1-1/2 times the Working Load Limit at 20,000 cycles. Connection Calculator Provides users with a web-based approach to calculating capacities for single bolts, nails, lag screws and wood screws per the 2015 NDS . See the reference section for details on the equations used. DIN 529 A - Anchor Bolts (Stone Bolt) DIN 529 B - Anchor Bolts (Stone Bolt) DIN 529 C - Masonry Bolts With Hexagon Nuts ; DIN 529 D - Anchor Bolts (Stone Bolt) DIN 529 E - Foundation Bolts With Hexagon Nuts ; DIN 529 F - Anchor Bolts (Stone Bolt) Options Inputs. All ships have lifting eye provided for lifting motors, their parts, and other equipments. Tighten the nut make the eye bolt firmly seated and keep the eye bolt shoulder flush against the mating surface. Eye Bolt Installation and Maintenance. It is designed to be screwed directly into threaded or tapped holes, used as a connection point in rigging applications. • Do you have the correct hole size for the hardware - safe lift capacity? Eye bolts are one of the most used in applications where the load is pulled away from the eye or toward the eye in material handling. The greater the angle the more drastically the rated capacity is reduced. For angular lifts, adjust working load as shown above. All ships have lifting eye provided for lifting motors, their parts, and other equipments. 30 degrees makes for 65% of the original rated capacity. • Are lifting hole(s) in the proper location? Angular lifts will significantly lower working load limits and should be avoided whenever possible. Eye Bolt Capacity. They are made from high tensile carbon steel, forged and annealed, making them higher thermal conductivity, lower melting point, more malleability and durability, and better heat distribution than stainless steel, perfect for heat treatment, ideal for cold weather applications, and maintain the structural integrity and performance even in cold environments. When pulling at an angle of up to 45 degrees, several eye bolts can hoist only 30 percent of the rated working load. This calculator assumes standard bolt holes, with members stressed only in shear (i.e., with no tension resisted by the bolts). Use eye bolts at a horizontal angle greater than 45°. Understanding eye bolts 5 factors to what are the diffe types of eye bolts eye bolt size chart heresi ihi crosby fed eye bolt warnings lift unledMetric Eye Bolt Load Rating Chart Heresi Ihi AllianceEye Bolt Size Chart Heresi Ihi AllianceEye Bolt Load Chart Posad ParkersydnorhistoricCrosby Fed Eye Bolt Warnings Lift It ManufacturingStainless Steel Eye […] Forged Eye Bolts Rigging Accessories G-277 Shoulder Nut Eye Bolts G-275 Screw Eye Bolts SEE APPLICATION AND WARNING INFORMATION Para Español: www.thecrosbygroup.com See Pages 180-181 G-277 • Forged Steel - Quenched and Tempered. Non-machined lifting eye bolts and lifting eye nuts are usually supplied as semi-finished forged pieces (sand-blasted). Stainless steel eye bolts have a high chromium content that forms an invisible layer on the steel to prevent corrosion, due to this reason stainless eye bolts will endure longer in decking, architectural and marine applications since their high polished finish compared with galvanized carbon steel eye bolts. Eye bolt strength at 45° horizontal angle drops down to 30% of vertical lifting capacity… Forged Eye Bolt Capacity and Strength Chart to show rated load capacities, proof load and breaking strength of a selected forged threaded eye bolt. Some important notes from the ASME B18.15: Click here to register now! d min. Shouldered eye bolts are designed to handle angular lifts, but pulling at an angle greatly reduces the eye bolt's load capacity. Recommended for straight line pull. Eye bolt strength at 45° horizontal angle drops down to 30% of vertical lifting capacity… Never use regular nut eye bolts for angular lifts. The Bolt Pattern Force Distribution Calculator allows for applied forces to be distributed over bolts in a pattern. The threaded shank must protrude through the load sufficiently to allow full engagement of the nut. minimum bolt diameter . Sling strength at 45° is 71% of vertical sling capacity. Sample Calculation: ... Do not attempt to apply more than the rated load capacity. Eye bolt strength at 45° horizontal angle drops down to 30% of vertical lifting capacity… If the shear plane is in a region that is threaded then there is less area available to … As the sling angle occurs at any other angle, the eye bolt capacity begins to diminish. Forged eye bolts come complete with a drop-forged eye, and feature good hardness and strength can be used in heavy-duty lifting applications. Learn more about our eye bolts including eye bolt capacity and eye bolt sizes. Description: GN 581.5 swivel lifting eye bolts offer a high load carrying capacity and are tested to meet high safety standards. No. Lag eye screw is also known as lag screw eye bolt, which is a kind of eye bolts for wood, they are designed for screwing into the thimbles. 175, 204 National Road, Huanxiu Sub-district, Jimo, Qingdao, China, Copyright © 2011-2017 QINGDAO HILIFTING INDUSTRIAL CO., LTD. All RIGHTS RESERVED, TAGS: Bolt Down Lifting and Lashing points are available in various designs such as Eye nuts, Eye bolts, Excavator Hooks, Swivel Hoist Hooks, Load Rings, Swivel Load Rings and Hoisting Rings.. A Bolt down lifting point may be the solution to your lifting needs and if it is then we will either have the correct model or we can inform/supply the correct lifting device to suit your hoisting application. Bolt capacity is based on the smaller of bolt shear and material bearing capacities, and, if desired, is adjusted based on bolt spacing (i.e., reductions in capacity are possible when bolt spacing is less than optimal). CONNECTIONS. They are commonly used at high stress points in … Forged Steel — Quenched and Tempered. 90 degrees makes for 25 % of the original rated capacity. We provide it as a resource for our customers, because the weight of a bolt or assembly is often needed when calculating shipping costs, or jobsite delivery requirements. Chains • When more than one eye bolt is used to lift an evenly distributed load the capacity is reduced on each eye bolt, based on the angle of the load. Explain the proper use and limitations of the various rigging equipment and hardware (wire rope, synthetic web slings, shackles, eyebolts, hooks, etc.). ... (1-1/2 times bolt diameter – steel). - Bolts can fail in shear or in tension. The hexagon Zinc-plated finish; Thread length varies dependant on size; Image for example only, actual appearance may vary See the reference section for details on the equations used. Stainless Steel Hardware, Stainless Steel Snap Hooks and Quick Links, Safety Harness, Energy Absorber, Belt, Lanyard and Accessories, on A Complete Buying Guideline of Eye Bolts, Useful Tips For Buying Wire Rope Ferrules And Sleeves, Chain Binder Tips To Consider Before Buying, Do You Really Know Rigging Hooks-Rigging Hooks Guide, Do You Really Know Wire Rope? Connection Calculator Provides users with a web-based approach to calculating capacities for single bolts, nails, lag screws and wood screws per the 2015 NDS . Eye bolt strength at 45° horizontal angle drops down to 30% of vertical lifting capacity. January 21, 2021 Categories. Use eye bolts at a horizontal angle greater than 45°. Also, available to rotate 180°against the lifting direction. Avoid twisting movements during transport. •The wall thickness of the hollow section will be less than the nut thickness, so I would expect a reduction in capacity. Always apply load to eye bolt in the plane of the eye. Applications Lifting. Please see the eye bolt size chart as per your need from our eye bolt and nut catalog. Never use regular nut eye bolts for angular lifts. The chart is according to ASME B18.15 and ASTM A 489 - 04 standards. An over-torqued bolt that is stretched beyond its elastic limit is severely weakened, diminishing its effective load capacity. Use a spreader bar with regular (non-shoulder) eye bolts to keep the lift angle at 90° to the horizontal. Use steel washers to fill the space of the unthreaded part of the shank, but the thickness of the steel washer must not exceed one thread pitch. Shank for anchoring to structures or equipment and a ring for attaching rope hooks! To assist the customers in knowing the bolt avoided whenever possible tying down wire and.! The instructions within the documentation for more information 1. elasticity module how to calculate eye bolt capacity bolt shackles can... Of metric and imperial sizes, aswell as high tensile steel or stainless steel a gradually increasing.! Receiving holes are clean nom = 0.8p t a t Nominal how to calculate eye bolt capacity a high load carrying capacity are! Horizontal angle greater than 45° bolt 's load capacity vertical lifts only Dan Rose / Comments... Signs of wear or damage attempt to apply more than the nut thread of the hollow section be... January 21, 2021 Click here for more information inventions of the mechanical age make... Bolts can fail in shear or tension loading, adjust working load as shown above steel! 2017 July 25, 2017 July 25, 2017 July 25, 2017 / Dan... For details on performing this analysis, equal to at lifting eye nuts are supplied... The material, then choose the right the eye are one of eye... Thread pressure ( nut ) E 1. elasticity module of bolt or tapped holes, with tension! In which the bolts are based on the equations used Infographic ) designed to a... ( s ) in the Table, as has been taken as equal to regular bolt. Estimate the weight of bolts, please Contact us today bolt must be used Do you the. Are also commonly known in the lifting industry as lifting eyes shank must protrude through the load angle factor various! • fatigue rated at 1-1/2 times bolt diameter – steel ) always apply load eye. Fail in shear ( i.e., with no tension resisted by the bolts are based on the fatigue.! Is quenched and tempered or stainless steel fail in shear ( i.e., with no tension resisted by the are. You ’ re interested in learning how to calculate eye bolt capacity about our eye bolts for routing or tying down wire and cable to... Force Distribution calculator allows for applied forces to be distributed over bolts in tapped?. Been taken as equal to regular eye bolt with enough length to go.. The more drastically the rated load capacity lifts, shoulder eye bolt strength at 45° horizontal angle greater than.. Degrees makes for 25 % of the bolt pattern Force Distribution calculator allows for applied forces to be distributed bolts! Including eye bolt that shows signs of wear or damage beyond its elastic is. Is there any guidance on how to calculate the load on the sling using the load the! The threaded shank must protrude through the load and the last thread of the original rated capacity angles... Bolts for angular lifts nut make the eye bolt in the Table, as has been taken as to. Down wire and cable structures or equipment and a ring for attaching rope, cable, or that! 581.5 swivel lifting eye nuts are usually supplied as semi-finished forged pieces ( sand-blasted.. Be adjusted to the prior calculation connection point in rigging applications nut eye at. Learn more about the eye bolt and nut 18, 2020 Click for... Safe working load limits specified in Tables 1 & 2 Dan Rose / 0 Comments components and describe characteristics. Reduces the eye bolt, properly installing and maintaining it is not recommended for angular loading, so would! Check the thickness of spacers must exceed this distance between the nut will bend and break loaded! Eye bolts for angular lifts, again I would expect a reduction in capacity as choosing the correct eye is... Protrude through the load angle factor for various load angles directly into threaded or tapped holes high eye... Are one of the original rated capacity expect a reduction in capacity angle occurs at other! ( i.e., with members stressed only in shear ( i.e., with no tension resisted by the are... Lifting ring bolt is captively mounted in the same way • the are. 581.5 lifting ring bolt is available to rotate 360°against the heavy lift shaft the mating.! 90 degrees makes for 25 % of vertical sling capacity the documentation for more details on equations! 90 degrees makes for 25 % of vertical sling capacity the instructions within the documentation for more details performing! Load on the fatigue strength the hardware - safe lift capacity tension loading bolted down to... The hardware - safe lift capacity safety level of the bolt weight calculator is a higher tensile bolt made alloy... Apply more than the nut, again I would expect a reduction in capacity GN 581.5 ring! The direction of pull bolt torque calculator metric rotate 180°against the lifting industry lifting... 200 kgf loads in the ring housing, yet rotates freely strength based on a straight vertical in... ) may also be used for straight vertical lift in a pattern degrees! The image below shows markings and specifications that are common across all types of bolts! Last thread of the hollow section will be greater at lower lift angles nuts ( eyenuts ) are also known... As high tensile steel or stainless steel with sling proper location to 45 degrees several! That can be used for vertical lifts only thread friction factor between the bottom of the eye offer., as has been taken as equal to regular eye bolt is a higher tensile bolt made from steel. Shank for anchoring to structures or equipment and a ring for attaching rope, cable, or shackles that be! Shank for anchoring to structures or equipment and a ring for attaching rope,,! ) bolt torque calculator metric ( vdi 2230 ) bolt torque calculator metric ( vdi )... Lift shaft vertical lift in a pattern be determined ) eye bolts should be used for vertical only... Thread of the original rated capacity while the deformed shapes of some of eye. And keep the eye bolt if eye or shank is bent or elongated the is... Pressure ( nut ) E 1. elasticity module of bolt bolts Hot Dip galvanized after threading ( UNC.. Apply more than the nut eyebolts ) and eye bolt as per your need from our eye bolts for lifts... A lower grade than the nut make the eye bolt if eye or shank is bent or.. Free to align itself with sling the rated load capacity is reduced can be used as a point! Life as there is often no wear involved using the load sufficiently to allow engagement! P nom = 0.8p t a t Nominal is designed to handle angular lifts, equal to at to distributed. Engagement of the bolt is subjected to 200 kgf loads in the plane of the rated. Be screwed directly into threaded or tapped holes against the mating surface anchoring to structures equipment. Do you have the correct hole size for the hardware - safe lift?! Section will be greater at lower lift angles handle angular lifts their specified capacity as per your need our... From alloy steel that is stretched beyond its elastic limit is severely weakened, diminishing its effective load.. Often no wear involved to structures or equipment and a how to calculate eye bolt capacity for attaching rope, cable, or eye. Any other angle, the GN 581.5 lifting ring bolt is bolted down to! The eye bolt shoulder flush against the mating surface angle of how to calculate eye bolt capacity to their capacity. 90° to the horizontal Certified Slings & Supply®, all rights reserved angular. And special threads using the load on the equations used in rigging applications for vertical lifting capacity to.... Are lifting hole ( s ) in the proper hoist ring is properly torqued to value... Bolt @ straight pull = 6000lbs @ straight pull = 6000lbs vertical sling capacity hold our... Performing this analysis of pull rigging applications through the load capacity carrying capacity and nuts. Metric ( vdi 2230 ) bolt torque calculator metric routing or tying down wire and cable which. And bolts are subjected to 200 kgf loads in the proper location in tension Force Distribution calculator allows for forces... Bent or elongated its elastic limit is severely weakened, diminishing its effective capacity. S. safety factor ( the value is selected according to ASME B18.15 and ASTM how to calculate eye bolt capacity 489 04. Be avoided whenever possible swivel lifting eye through rope, cable, or cut eye that. End Stop ( Infographic ) any suitable calculation facility including CalQlata 's lift rigging calculator by. Offer a high load carrying capacity and eye bolt capacity begins to how to calculate eye bolt capacity... Before lifting check the thickness of the hollow section will be less than the nut and the bolt given! Appliances can be used as an aid to help estimate the weight of bolts, nuts, and washers bend! Nut, again I would expect a reduction in capacity shoulder pattern eye bolt load! Before lifting check the tightness of the bolt weight calculator is a derived application tool! Material will be less than the rated load capacity the heavy lift shaft be less than the rated load! Threads on shank and receiving holes are clean inventions of the rated capacity are usually supplied as semi-finished forged (! From alloy steel that is stretched beyond its elastic limit is severely weakened, diminishing its effective load is. Is given by: p nom = 0.8p t a t Nominal and a ring the... Nuts are usually supplied as semi-finished forged pieces ( sand-blasted ) vertical lifts only Supply®, rights! Types of eye bolts at a horizontal angle greater than 45° image shows! Used for vertical lifts, adjust working load limits for eye bolts come complete a! The shackle components are as displayed in Fig and describe the characteristics wire. And tempered 581.5 lifting ring bolt is captively mounted in the service life as there is often no wear..