5/16" Headboard Shackle Captive Pin 1350 Lb WLL Marine Grade Stainless Steel 316 Unit Weight: 3.2 Ounce *Rough Estimation* Marine Grade 316 stainless steel has high hardness, is durable, wear and corrosion resistance, not easy to deform. No rust when use it in damp environment or fresh water Captive Pin Working Load Limit: 1,350 Lbs *Never exceed the WLL* Overall Length (Bottom To Top): 3'' Qty: 1 Piece Light Item