These shackles are forged from AISI 316 and fitted with a shouldered bolt and security pin, not the normal weaker threaded pin. The nut is tightened up against the shoulder and the pin fitted, allowing the pin to rotate in use.

Dimensions in mm.
A B C D
6,4 8 12 22
AISI 316 (A4) stainless steel
Breaking Strain 38kN
6,4 x 8mm Pin Shackl