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Do you have a friend who is a machinist? Even a hobby tinker with a metal hobby lathe. He should be able to drill a hole, thread it, knurl the outside and cut it off to length. If you want to make it easy have him make both ends and then he can pick his own thread sizes. He just needs to hit the OAL.

Parts for a 60 year old, long ago discontinued gun, are just about impossible to find as you are discovering. But there are a lot of skilled people out there who can still make just about anything. But like most things of value they are getting fewer every day. Common sense, mechanical ability and thinking outside the box are getting to be a vanishing set of skills. Machinist, old ones anyways, or tinker hobbyist who build model steam engines are use to figuring out how to make all kinds of small parts.

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As an Old Machinist, it is most likely your best option will be to Start From Scratch. "If" you are fortunate enough that the thread is a standard then you can likely just find or make the nut, but many gun screws are not standard.

Not all US lathes will cut metric threads as they normally have English lead screws. "If" you have some change gears which include a 127 tooth gear then metrics can be cut. Unless the lathe has a metric lead screw though you cannot use the half nut to disengage & re-engage the tool for chasing. At the end of the thread, the tool has to be backed out, lathe reversed & allowed to feed back to the start It then can be fed in for the next cut & re-started forward.

For the most part, small threads are better cut with taps & dies, but these can get expensive for a one-off project.

Some of the small bench lathes such as the old Atlas (Craftsman), South Bend etc will cut metric threads by use of a 64 tooth gear. This is not absolutely correct but unless you have an extremely long length of engagement the slight error can normally be ignored.


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I Didn't Say Everything I Said, Yogi Berra
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cpa, I bought one a couple years ago for my Beretta from Midwest Gun Works in Missouri. The new escutcheon came with a new screw.

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cpa Offline OP
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Thanks. I've contacted them to see if they have the screw and nut and, if so, the size. I have some experience filing down the nut so could be good to go if the diameter is ok or a standard drill size.

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cpa Offline OP
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Could someone with a Beretts 680 series please measure the diameter of the forearm escutcheon nut?
Thanks a lot.

Last edited by cpa; 11/21/18 11:37 PM.
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