Spring loaded bolt latch can be locked in the open position, easy for you to operate by moving the lever. Turning lever allows the bolt to close under spring pressure. This box bolt is more safe way to lock your doors and windows. Good for use on doors, gates and electric cabinets, etc. Welded and drill installation. Specification:Material: Stainless steel 201Finish: Vibration PolishingOverall Size: 93mm x 24mm x 1.4mm / 3.66" x 0.94" x 0.055" (L*W*T)Shaft Diameter: 5.7mm / 0.22" Package Content:1 x Spring Bolt Latch