Wrap Pins are fabric hook and eye locking devices used to secure screws without messing with stubborn cotter pins. Simply make your adjustment push the pin attached to the web hook and eye through the hole and wrap the web hook and strap around the body of the buckle. Works on Johnsons Positive Lock Slotted Tubular Turnbuckles. This size works for 18 diameter for 712 and 12 and 58 threads. Wrap Bolts Fabric Hook Eye Pin Locking Devices for Open Body. 2 Spec Pack Size: 043 05 inches. Weight 005 lbs.