BS 3551:1962

Shackles similar to BS 3032, but using alloy steel twice as strong as mild steel and one and a half times as strong as higher tensile steel. Dee and bow shackles with four types of pin. Material, dimensions, heat treatment, workmanship, finish, screw threads, proof loading, marking, certification. Design for special (or unscheduled) shackles with different dimensions. Safe working loads 1 ton 2 cwt to 80 tons. Information with enquiry and order, notes on design, recommendations for contracts.Cross References:BS 84BS 240:Part 1BS 350BS 825 BS 860BS 919BS 970BS 1580BS 1706BS 1936BS 3032BS 3189BS 3458