JingYi Stainless Steel 316 Anchor D Shackle Choose Size 3/16",3/8",1/4",5/8",5/16",1/2" Grade 316 stainless steel screw pin shackle Threaded shackle pin with key hole for tightening/loosening and wiring pin to shackle Electronic polishing has bright finish without thread-strength degradation of mirror finish process Size (in.): 3/16; Working Load (lbs.): 700; Breaking Strength (lbs.): 2,800. Size (in.): 1/4; Working Load (lbs.): 900; Breaking Strength (lbs.): 3,900. Size (in.): 5/16; Working Load (lbs.): 1,900; BreakingStrength (lbs.): 7,700. Size (in.): 3/8; Working Load (lbs.): 2,900; Breaking Strength (lbs.): 11,900. Size (in.): 1/2; Working Load (lbs.): 6,100;