These spring loaded hand retractable plungers are used to prevent any change in locking position due to lateral force. Pulling up on the handle retracts the plunger pin into the body. The handle and plunger pin are made from stainless steel with natural finish. The plunger pin is ground and hardened. Supplied with stainless jam nut. Screw-in washers to install the plungers are available separately.