Abstract： AS 2741:2002 pdf download.Shackles. The screwed portion of shackle pins shall he concentric with the plain portion. Metric threads shall comply with AS 1721, with a tolerance class of 6G/6e. The tolerance for threads other than metric threa...

AS 2741:2002 pdf download.Shackles.

The screwed portion of shackle pins shall he concentric with the plain portion. Metric threads shall comply with AS 1721, with a

tolerance class of 6G/6e.

The tolerance for threads other than metric threads shall be similar to the tolerances for metric threads.

Where required. the shank of the shackle pin shall have an undercut and fillet at the end of the threaded portion conforming to

Form A Tolerance Grade I as specified by AS B 199.

For bolts and nuts, the length of the plain portion ot the bolt should be such that its nut will lock on the inner end of the

thread or undercut and not on the face of the shackle body. When in this position, bolts shall be cross-drilled for the split

cotter pin.

5.3 Shackle both

The shackle body shall be cleanly forged in one piece and, prior to machining, shall be free from apparent defects.

Where holes are machined, the diameter of any hot-pierced holes shall be not more than two-thirds of the finished diameter of the

machined hole.

Where holes are produced by methods oilier than drilling, the resulting cut thread shall extend through the full depth of the eye.

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