The stainless steel coupler pin lock fits couplers from ½-inch to 3 3/8 inches in 1/8-inch increments. BOLT’s coupler pin lock secures the locking lever from any movement and serves dual purposes: ...

The Off-Vehicle Coupler Lock secures a trailer when it's not attached to a vehicle. It features the company’s patented one-key lock technology that permanently programs locks to the vehicle's ignition ...

Starter's BOLT BOLT Off-Vehicle Coupler Lock deters trailer theft by securing a trailer when it is not attached to a vehicle The BOLT Off-Vehicle Coupler Lock deters trailer theft by securing a ...