Crosby S1325A 5/16in (8MM) Grade 100 Chain Coupler - Forged alloy steel Quenched & Tempered. Designed to connect Grade 100 chain fittings produced with engineered flat to Grade 100 chain. Suitable for use with Grade 100 and Grade 80 chain. Individually Proof Tested to 2-1/2 times the Working Load Limit with certification. Locking system that provides for simple assembly and disassembly no special tools required. Fatigue rated to 20,000 cycles at 1-1/2 times the Working Load Limit.
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