It is extremely simple, requiring no holes be drilled, and requiring {HEAD ~ only one small downwardly slanted cut} be made in {TAIL ~ the rearward flange} of the mailbox door 
It is extremely simple , requiring no holes be drilled , and requiring { HEAD ~ only one small downwardly slanted cut } be made in { TAIL ~ the rearward flange } of the mailbox door
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH