MiD mount screw

[five 0]

http://www.nicolausassociates.com/images/M1D%20Cover%20Page.jpg

In the lower left corner the above show the componets of the M1D mount. I can not find the dimensions of the mount screw. Does anyone have a scaled drawing or know the dimensions of the screw. I know the screw is 5/16x32. The one on my mount is 5/16x28. I would like to try to have a new one made but need the specs.

[Richard H Brown Jr]

1. Call, write, email Ordnance museum and ask if they have M1D mount dwgs in collection, and what it would cost for a complet set.

2. Is the mount N.O.S. USGI, used USGI, or new or used repro? Repro stuff is crap. Lots of gun forums for m-1 or sniper bogs, have B,M&C's about repro quality bening crappy. cheap metal, bad manufacturing, etc.

3. As to threads,etc. any *GOOD* machine shop should be able to tell you the threads on the screw and the hole.

RHB

[Griff Murphey]

Some of the later rebuild D's from CMP came with defective screws. Mine stripped, but it was some time after purchase and CMP would not make it good. It is a factory pressed assembly, not just a bolt. As such I was assured making a repair part was a no go. I bought a replacement GI mount through National Match Armory and had them Loc Tite it.

[five 0]

1, Is this where I should make the request? http://www.ordmusfound.org/
2, Yes it was a M1D mount purchased through the CMP in 2010. The thumbwheel has a glob of weld where the original screw was replaced with a 5/16x28 screw which is longer than the original screw. It must have been used for something other than a M1D. CMP was sold out of the mounts and would not replace it.
3 That is what I hoped could be done it I had the screw dimensions and then have it TIG welded back on the thumbwheel.

[jgaynor]

FWIW the GI Part no. for the M1-D scope bracket is C-7312542. Each of the components has its own part no and the attaching screw is part B-7312548. Some of the SNL's or maintenance manuals might give detailed specs on the screw. I have no idea if ordnance stocked the spares separately or just repalced the bracket as a unit.

Regards,
Jim

[five 0]

Thanks Jim. The drawing number for the M1D mount I found was C7312554 which came from The Garand Stand Report. Sent that info to the historian at Ft. Lee to see if they have any dimensions on the screw.

[jgaynor]

Five 0 ..You are right. I was working from a reproduced TM picture inn Hatchers book of the Garand. Pulled out a later SNL and it listed C7312554 as the "BRACKET, KNOB and PLUNGER assembly (M1-D) i.e includes the screw and all the minor parts. C7312542 is just the bracket shell/

Regards,
Jim