Buyers Products Weld-On Spring Latch (Set of 4) is designed for 90 degree engage application. The spring-loaded mechanism can be locked in the open position; turn to put the spring in the closed position. The latch comes with either a heat-treated or stainless steel tube. Both feature a stainless steel pin and spring. Latch can be ordered unassembled for a custom installation. Extended plunger model is also available.