Key Pin Shackle - Diameter 6mm - 1/4"Features: Key pin shackle forged in grade 316L stainless steel Opening and closing is done simply by rotating the pin half a turn No risk to lose the pin as it remains attached Outstanding working and breaking loads Applications:Perfect product for halyards or applications requiring to open/close the shackle oftenSpecifications: Materials 316 stainless steel grade Working load (lb) 1140 Breaking load (lb) 3300 Weight (lb) 0.106 Dimensions (see 2nd image): A (inch) 1-49/64" B (inch) 5/8" C (inch) 15/64" D (inch) 33/64" D diameter (inch) 15/64" E (inch) 5/32" F (inch) 2-23/64" G (inch) 1-29/64"