This specification covers weldless forged, quenched and tempered carbon steel threaded lifting eyes or eyebolts for overhead lifting. ASTM A covers two. ASTM A Standard Specification for Carbon Steel Eyebolts. Shoulder Pattern. Drop Forged Carbon Steel, Self-Colored. ASTM A Fully Threaded: UNC-2A. A. B. C. D. (Combination pricing for Eyebolts on page 4).
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In case two or more than two eye bolts are used without spreader bars, their orientation shall be such that load is in the plane of the eyes as shown below Orientation of eye bolts.
Only one leg should be attached to each eye bolt. Link to Active This link will always route to the current Active version of the standard. Proper thread engagement must be maintained. ASTM F requires the Eye Bolt Inspection Visually inspect each eye bolt before use.
No other units of measurement are included in this standard. Use number of nuts based on thickness of load as shown below. ASTM A – 12 Standard Specification for Carbon Steel Lifting Eyes This specification covers the chemical, mechanical, grain a4899, and dimensional requirements for weldless forged, quenched, and tempered carbon steel threaded lifting eyes formerly pertained to as eyebolts for overhead lifting.
It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. Installation for In-line Loading For in-line loading application use regular nut eye bolt or shoulder nut eye bolt. Therefore, in order to minimize the possibility of a brittle cleavage failure, these lifting eyes should never be loaded above the proof asstm, and should not be used when surface discontinuities exist on the lifting eyes.
Eye bolts that are worn, cracked, bent, We need your help to maintenance adtm website.
This specification covers two types denoting shank pattern, and one style denoting shank length, as follows: Eye bolts shall have a minimum design factor of 5, based on ultimate strength. If the plane of the machinery eye bolt is not aligned with the sling line, add shims washers of proper thickness to adjust the angle of the plane of the eye to match the sling line as shown below.
Type 1, plain pattern straight shank ; Type 2, shoulder pattern; and Style B, short length. For vertical loading, eye bolts without shoulders have the same load-carrying ability as shouldered eye bolts. Always tighten nuts securely against the load.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
Alloy steel eye bolts are forged, quenched, and tempered with improved toughness properties, intended primarily for low- temperature applications. Always countersink receiving hole or use washers to seat shoulder. For more information on eye bolts dimensions and swivel hoist rings different type of rings please refer General Catalog of the Crosby Group.
This standard covers only eyebolts with eyes of internal diameters capable of permitting direct engagement with eyehooks of the same lifting capacity working load limit for use with Grade T 8 chain.
For installation, tap the load tap depth to a minimum depth of one-half the eye bolt size beyond the shank length of the machinery eye bolt.
September 18th, at Use one nut if thickness is more than one eye bolt diameter. One Response Jar Allah Says: In the case of eyehooks for use with Grade M 4 chain, it may be necessary to use an intermediate component such as a shackle to make the connection. Superfast Fasteners India Pvt. I Washers Manufacture of D. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Size px x x x x We need your help! ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. If the eye bolt protrudes so far through the load that the nut cannot be tightened securely against the load, use properly sized washers to take up the excess space between the nut and the load as shown below.
Historical Version s – view previous versions of standard. Type 1, plain pattern straight shank ; Type 2, shoulder pattern; and Style B, short length. We are a non-profit group that run this website to share documents.
Application It is recommended to use shouldered eye bolts for rigging hardware, except when prohibited by the configuration of the item to which the eye bolt is attached. Never undercut eye bolt to seat shoulder against the load. Reeving of Sling Slings shall not be reeved through an eye bolt or reeved through a pair of eye bolts. Material, Specification and Marking Eye bolts are made from forged carbon steel or alloy steel.