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Old 05-04-2012, 07:17 PM
Engineer Engineer is offline
Join Date: May 2001
Location: NE Ohio
Posts: 171
Check-Mate Magazine Base Thread Size and Pitch?

I picked up a few Check-Mate 1911 mags and a couple of base pads. The screws that came with the pads pretty much suck and I would like to replace them with hex-head cap screws. Does anybody know what size and pitch the holes in the basepad are threaded at?

The smallest my gauges measure down to is 6-32 and the screws are smaller than that so I'm out of luck at the moment.

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Old 05-04-2012, 08:35 PM
AreB AreB is offline
Senior Member
Join Date: Jul 2007
Posts: 3,671
Pretty sure they are 4-40.

The screws that come with the Checkmate mags are self-tapping and the bases are not threaded. If you plan to use hardware store screws you should get a handfull of 4-40 taps, some cutting oil, and be patient.

I have done what you're planning to do-because I didn't care for the silver dot on a black basepad/black mag. Yes, I'm a bit compulsive.
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