Steve's Peep sight threads
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Steve's Peep sight threads
Skinner sells a rear sight drilled & tapped to hold a spare peep aperture. I have Steve's safety replacement sight. I would like to install a dovetail rear sight like Skinner's drlled & tapped for Steve's aperture. Can someone tell me what the threads are on the aperture? Its not an inch thread fine or course. I suspect a proprietary threading.
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Re: Steve's Peep sight threads
Proprietary threading is stupid. Costs you out the ying yang because you essentially have to buy the tooling to do it for your manufacturer. For small manufacturing lots like Steve is having done it simply would not be practical. Even when you want a 'standard' threading that is not common you will end up having to buy the tooling most of the time.
I don't know what he's using but you can almost bet the farm that it's a standard thread in common use
(My use of 'standard' above means non-custom whether it is one of the Inch/US/Imperial spec or metric spec.)
I don't know what he's using but you can almost bet the farm that it's a standard thread in common use
(My use of 'standard' above means non-custom whether it is one of the Inch/US/Imperial spec or metric spec.)
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Re: Steve's Peep sight threads
I agree. I went to local Ace Hdwe store to match up the threads with what they had expecting something like 10-32 or similar metric threads. At one point thinking about using a socket head cap screw drilled out to avoid paying Steve $18.00 for extra apertures.
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Re: Steve's Peep sight threads
Thread major diameter is appx .210", that'd make it a no. 12 machine screw. Pitch is tough. I count 4 or 5 threads in about 1/8". Best guess would be no.
12-32 or 12-40 TPI.
12-32 or 12-40 TPI.
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Re: Steve's Peep sight threads
It's a no.12 alright. The pitch is 36 TPI, UNS Unified national special. It's a very common thread actually. The Schrader valve in your car tires use are threaded 12-36.
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- Posts: 112
- Joined: 19 Aug 2020 21:55
- Location: BR LA
- Has thanked: 32 times
- Been thanked: 9 times