SHACKLE D-TYPE SCREW PIN, BLACK 16MM SWL 0.8TON 230325

Order by rating, not just by size. One maker’s forged, quenched and tempered 5/8 in screw pin anchor shackle is marked with a working load limit of 3¼ t and has a 6:1 design factor. The IMPA line rates a 16 mm shackle at 0.8 t. So "16 mm" alone does not say what a shackle will hold, and offers for the same size can carry very different ratings. Ask for the rating marked on the body to be at least 0.8 t, and for the material and dimensions to be stated.^[2]

The code does not say whether 16 mm is the bow or the pin diameter. If the shackle must fit an existing eye, pad eye or chain link, give the pin diameter and the jaw width you need.

Each accessory for lifting must be clearly and legibly marked with its safe working load, or marked so that a user can identify what is needed for its safe use. Reject unmarked shackles for any lifting job.^[1]

SWL and WLL are not the same. In LEEA’s code of practice, the working load limit (WLL) is the maximum load an item is designed to raise, lower or suspend; some standards call it "maximum SWL". The safe working load (SWL) is the maximum load a competent person assesses for the particular service conditions, marked on the equipment and recorded in the statutory records. Treat the 0.8 t in the IMPA name as the rating to match. The SWL in service may be set lower.^[3]

Under the UK lifting regulations, an accessory for lifting is not used after manufacture without first being suitably tested by a competent person, and after the test it is thoroughly examined and certified for use. Ask for the test certificate with the delivery.^[1]