HitchMate 6017-Surge Brake Trailer LockÑ‚Â€Â”3-3/8-Inch Span
Coupler lock for lever style trailer couplers requiring a 3-3/8â€ span. Locks trailer to hitch ball when in use. Helps prevent attaching to an unattended trailer. Coupler Lock with housing and knob cones for flush locking design. Pin Diameter: 1/4", Inside Width: 3-3/8", Overall Length: 7.00".