Design: Forged according to U.S. specification RR-C-271D Type IVA, Grade A, Class 2. Supplied with head-bolt with nut and cotter pin.
Material: Forged alloy steel. Head-bolt in alloy steel. Not to be heat-treated.
Marking: WLL, CE, size, grade, charge number and manufacturer ID.
Finish: Hot dip galvanized.
Safety factor: 6:1.