Crosby nut and bolt type pin safety ... - LiftingSafety
Bolt Type chain shackles with thin hex head bolt - nut with cotter pin. Meets the performance requirements of Federal Specification RR-C-271F Type IVA, Grade A, Class 3, except for those provisions required of the contractor. Capacities 0.5 to 85 metric tons, grade 6. Working Load Limit and grade '6' permanently shown on every shackle.
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