National Hardware's 3/4" x 3-9/16" Bolt Snap is designed for use with rope, chain, strap, animal leashes, and other home, farm, and recreational applications. Stainless steel construction for weather resistance Self clip bolt snap provides quick attachment when applied against a rope or a ring. For interior and exterior applications Coated with Weatherguard™ Protection to withstand harsh weather conditions and prevent corrosion. Safe working load of 250 lbs