CLAMP bodies and keeper pieces are cast in high strength aluminum alloy that is non-copper bearing.
U-Bolts,Clevis Pin and associated components are steel.
Cotter Keys are stainless steel.
Socket Eye and Clevis used as connectors are ductile iron of great strength and maybe ordered inclusive or separately from the clamp.
Ball Clevis is drop-forged steel.
Shank diameter of ANSI Class 52-3 and 52-5 pin is consistent with ANSI insulator M&E strength ratings of 15,000 and 25,000 lbs.respectively