National Hardware's 1/2" x 3" Stainless Steel Bolt Snap with Swivel Eye is designed to use with rope, chain, strap, animal leashes and other home, farm, and recreational applications. Manufactured from stainless steel for durability and weather resistance. Easily attaches with retractable bolt and pull down trigger. For quick repeated attachments in a wide variety of applications. Coated with WeatherGuard Protection to withstand harsh weather conditions and prevent corrosion. Medium Duty Rating with 170 lbs. Safe Working Load, always follow safe working load (SWL) limits included on packaging. National Hardware's Lifespan Limited Lifetime Warranty.