A shackle is a U-shaped, load-bearing connecting device designed to be used with a removable pin. BS 3551 provides the specification for shackles in alloy steel.
Material, heat-treatment, workmanship, finish, screw threads, proof loading, marking and certification for alloy steel shackles are specified in BS 3551.
BS 3551 on the Specification for alloy steel shackles is useful for:
Shackles are used in a number of different rigging and load securement applications to connect different types of lifting slings, chain, or rope to an object or to each other. BS 3551 provides you with details on the specification for alloy steel shackles such as tables of dimensions for dee and bow shackles.
Design requirements are laid down for special (or unscheduled) shackles whose dimensions differ from those given in these tables. Other aspects discussed in BS 3551 include types of shackle, special shackles, size, and hardness. Form and dimensions, as well as tolerances on dimensions have been provided for your reference in BS 3551. Details on bolts and nuts, finish, screw threads, proof loading, and marking have also been provided in BS 3551.
Using BS 3551 guidelines, you can access best practices in manufacturing alloy steel shackles so that your customers can use sturdy and high-quality shackles. This mitigates risks to life and property.
ISO 2415