S Track Aluminum Tie Down 4 Pack Anchor System Quick Disconnect Trailer (Silver) You are buying a pack of 4 Silver Pit Posse Tie Downs. 1"1/8 diameter stainless ring assembles quickly and easily. 4000 lbs straight pull strength & 2000 lbs at 90 degree side pull strength. Bolt size is 1/4-28 X 1.5 in Length