Size: 5/16"Overall Length: 2-15/16"Jaw Opening: 7/16"Safe Working Load: 2,500 lbs.Material: Stainless SteelDesigned For Fast, Easy Connections Between Two Lengths Of Chain Or For Attaching Accessories To ChainHex Locking Coupler Nut For Easy Opening And ClosingStainless Steel Is Great For Marine Application And Withstanding The Harshest ElementsDo Not Use For Overhead Lifting