NATIONAL MAILBOX LOCK 4C STYLE CLOCKWISE

Stainless steel plug
12 degree taper on cylinder head
Now able to accommodate up to 3/16″ cam
Drain holes on the bottom of the cylinder
Will include spring clip, mounting nut and (3) keys
How the lock opens determines key rotation
Only mailbox locks to meet and exceed United States Postal Service specification “USPS-L-1172C”
Will withstand 1000 pounds of force applied to the cam
Will retrofit existing NDCBUs (Neighborhood Delivery Collection Box) with double “D” style cut-out