Self-Locking Twisted Shackle - Diameter 8mm - 5/16"Features: Self-locking twisted shackle forged in grade 316L stainless steel The pin is locked into one of the indentations No risks of loosening due to vibrations Outstanding working and breaking loads Applications: Perfect for application where a 90Adeg angle twist setup is required Often used to attach an unarticulated part (block on a rail) or on purchases Specifications: Materials 316 stainless steel grade Working load (lb) 2200 Breaking load (lb) 6610 Weight (lb) 0.148 Dimensions (see 2nd image): A (inch)1-37/64" B (inch) 5/8" C (inch) 5/16" D (inch) 5/8" D diameter (inch) 5/16" E (inch) 9/32" F (inch) 2-23/64"