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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This standard does not purport to address all of the safety concerns, if any, associated with its use.
ASTM F requires the The mechanical properties to which the lifting z489 shall adhere are proof, breaking strength, tensile stress and strength, bend strength, a4899 strength, yield point, elongation, and reduction of area. We need your help! When more than one eye bolt is used in conjunction with multiple-leg rigging, spreader bars or lifting beams should be used to eliminate angular loading. This specification covers the chemical, mechanical, grain size, and dimensional requirements for weldless forged, quenched, and tempered carbon steel threaded lifting eyes formerly pertained to as eyebolts for overhead lifting.
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 astmm the load as shown below.
Please copy and paste this embed script to where you want to embed Embed Asfm. This specification covers two types denoting shank pattern, and one style denoting shank length, as follows: We are a non-profit group that run this website to share documents.
ASTM A – Free Download PDF
Application It is recommended to use shouldered eye bolts for rigging hardware, except when prohibited by the configuration of the item a89 which the eye bolt is attached.
Please help us to share our service with your friends. 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. ASTM A – 12 Standard Specification for Carbon Steel Lifting Eyes This specification covers the chemical, mechanical, grain size, and dimensional requirements for weldless forged, quenched, and tempered carbon steel threaded lifting eyes formerly pertained to as eyebolts for overhead lifting.
Astk Response Jar Allah Says: 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. Size px x x x x Referenced Documents purchase separately The documents listed below aztm referenced within the subject standard but are not provided as part of the standard.
Alloy steel eye bolts are forged, quenched, and tempered with improved toughness properties, intended primarily for low- temperature applications. In the case of eyehooks for use with Grade M 4 chain, it may be necessary to use an intermediate component such as zstm shackle to make the connection.
Use two nuts if thickness is less than or equal to eye bolt diameter. Type 1, plain pattern straight shank ; Type 2, shoulder pattern; and Style B, short length.
ASTM A Specification – Boltport Fasteners LLP
Use number of nuts based atm thickness of load as shown below. Always tighten nuts securely against the load. Please fill this form, we will try to respond as soon as possible. The lifting eyes shall be manufactured as specified for the melting, forging, heat treatment, and machining processes. Installation for In-line Loading For in-line loading application use regular nut eye bolt or shoulder nut eye bolt. A4889 eye bolts cannot be properly seated and aligned with each other, a steel washer or spacer not to exceed one thread pitch may be required to put below the eye bolt.
The lifting eyes shall be manufactured as specified for the melting, forging, heat treatment, and machining processes.
ASTM A489 Specification
Only one leg should be attached to each eye bolt. Sketches in this article are based on sketches in General Catalogue by Crosby Group. Where non-shouldered eye bolts are required, they shall be used only in vertical pulls or in rigging systems that are designed, analyzed, and approved by qstm qualified person. For vertical loading, eye bolts without shoulders have the same load-carrying ability as shouldered eye bolts. Proper thread engagement must be maintained.
Ensure that threads on shank and receiving hole are clean. September 18th, at 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.
Superfast Fasteners Astmm Pvt. Therefore, in order to minimize the possibility of a brittle cleavage failure, these lifting eyes should never be loaded above the proof load, and should not be used when surface discontinuities exist on the lifting eyes.
If the hook does not go completely into the eye bolt, use a shackle to avoid loading the hook tip. Material, Specification and Marking Eye bolts are made from forged carbon steel or alloy steel.
Always countersink receiving hole or use washers to seat shoulder. Eye Bolt Inspection Visually inspect each eye bolt before use. Eye bolts shall have a minimum design factor of 5, based on ultimate strength.