The semi round screw pin shackle is precision cast and made of type 316 stainless steel which contains the added element molybdenum compared to the type 304. With added corrosion resistance characteristics, the type 316 shackles are ideal for sailboat, yacht and other marine applications. Size: 5/16" Break Strength: 1,800 lbs Work Load Limit: 450 lbs

The semi round screw pin shackle is precision cast and made of type 316 stainless steel which contains the added element molybdenum compared to the type 304. With added corrosion resistance characteristics, the type 316 shackles are ideal for sailboat, yacht and other marine applications. Size: 5/16" Break Strength: 1,800 lbs Work Load Limit: 450 lbs