Hitch bolts / Oliver part manual identify hardware

Craig Thompson · May 4, 2016

I Picked up a oliver 77 a while back and just getting a chance to work on the tractor. I would like to install a hitch for Pulling. My question is do I want grade 8 fasteners for hitch? what were original installed? I
think I have a copy of the original parts manual I have states for the lower hitch bolts (pc no 4) is a 3/4-10x2 AM STD HEX HD do you know what AM STD HEX HD means. Is the original bolts not even graded (i.e.
grade 5 or 8)

Thanks for your help!

J. Schwiebert · May 4, 2016

You have an old parts book! Later books list the 900 series part number for those bolts which makes them grade 5 bolts.

IanC · May 4, 2016

Please correct me but if my remember is working OK, if it was "bolt" it was grade 5 and if it said "cap screw" it meant grade 8.

Mike(NEOhio) · May 4, 2016

If you want to get "technical" they're all cap screws. Hex head, socket head, round head, etc. It becomes a "bolt" when you put a nut on it.

Hitch bolts / Oliver part manual identify hardware

Craig Thompson

Member

J. Schwiebert

Well-known Member

IanC

Well-known Member

Mike(NEOhio)

Well-known Member

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