A steel bar travels through the lock and can be locked in place with a quarter turn of the knob.The sliding lock is mounted to a plate or table surface. A steel bar travels through the lock and can be locked in place with a quarter turn of the knob. The steel bar is locked in place when the knob is in the ON position; the steel bar can slide freely when the knob is in the OFF position. The locking mechanism consists of a wedge that forces a shaft against the surface of the steel bar. The body is made from die-cast zinc with a plated chrome finish. The knob is made from either orange or black glass-fiber reinforced polyamide. The shaft/wedge is made from stainless steel, and the flat spring is made from C519P phosphor bronze. For the steel bar, use JIS H14 grade steel made from SS400, S45C, SUS304, etc. The bar should be at least 30 mm wide.