locking pin on MH hitch receiver

[Chuck 1935]

Always have used a regular bolt with a nut that is drilled for a pin. The shaft of the bolt extends through to the outside of the reciever so that there are no threads being subject to a sheer force.
The regular pins that come with the hitch are just mild steel.

[Cruzer]

Here's another vote against the grade 8 bolt. On my construction equiopment we've found they don't work in that application. The grade 8sare harder than grade 5s but that also makes them less forgiving becauwse they are more brittle. If you need to clamp something tight, the grade 8 is an excellent upgrade. But when used as a pin it can shear if there is anyshearing action applied to it. A grade 5 bolt will give and flex a bit before it shears.

I have had good success with my Blue Ox locking pins but I do remove them and lube the lock cylinders twice a year. Even so, if I tow in winter they need to be replaced every 3 years or so.

[Dunner]

Thank you; my point exactly.