Crafted from heavy steel,this spring latch pin is corrosion-resistant,making it ideal for outdoor use The trailer door latch assembly with plain tube can be welded easily to the frame. Twist to extend the pin to counterpart 5/8'' diameter hole for locking securely. Universal long spring lock: Spring-loaded bolt can be locked in the open position as needed The utility trailer tailgate side latch is an great dump trailer accessory, suitable for trailer frame, rail, deck slide, trailer door, angle chassis, tire carriers and lay-down tailgate, also fits for ramp gate, camper van swivel seat, landscape trailer, snowmobile sled, tractor, ect. The utility trailer tailgate side latch is an great dump trailer accessory, suitable for trailer frame, rail, deck slide, trailer door, angle chassis, tire carriers and lay-down tailgate, also fits for ramp gate, camper van swivel seat, landscape trailer, snowmobile sled, tractor, ect.