Snaps - 5th wheel spring loaded pins permit extending or retracting legs in seconds - Snaps really work and once you try them you will never have a unit without them. Install in minutes. Available in weld-on and clamp-on models in sizes to fit either 2 in. or 2-1/4 in. square legs, with 3/8 in. holes. Heavy-Duty Snaps fits 2 3/4 in. square legs with 1/2 in. holes. Snaps Spring-loaded pins that permit you to hookup or unhook your 5th wheel rig in less than 2-minutes. Remember kneeling down in the rain, mud, and mess just to get that darn clevis pin in place well, Snaps has eliminated the hard part of the job forever. Now you can engage and disengage the heavy-duty pin with 1 hand.