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Old 11-03-2009, 12:53 AM   #1 (permalink)
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Rear grip frame Bolt not going into the valve

Friend's newly purchased auto mag, with a mini-mag valve, classic rail, will not screw in all the way to be flush with the grip frame, whether it's a carbon fiber frame or a powerlyte single trigger.

cleaned out the hole, threads don't "seem" bad...

don't know why it wont thread in all the way, even snapped the ball head off an allen wrench trying to tighten it down a bit more...still wouldn't thread in more.
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Old 11-03-2009, 01:49 AM   #2 (permalink)
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Field Strip Screw Assembly

Part Number: 000432

The Field Strip Screw holds your valve in place. Comes with a small urethane rubber washer on the base to prevent it from vibrating out. Make sure you tighten it with a wrench. Works for all AGD markers except the RT.



Are you missing the washer >?

Also your overtightening if you can break the head off a wrench. Go carefully or the Field strip screw bottoming out will be the least of your worries.
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Old 11-03-2009, 02:25 AM   #3 (permalink)
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this bolt does not have a rubber washer.

It's not overtightened because it's now where near flush. The carbon grip frame has that groove the bolt head should rest in, but it will not tighten enough to sit there.

here is an attached image of it on the powerlyte frame.


that is as far as it will go, and I know it's not threaded in all the way. the allen that i broke was a little cheapo from harbor freight
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Last edited by dundadun; 11-03-2009 at 05:03 AM.
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Old 11-03-2009, 08:16 AM   #4 (permalink)
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Buy a new screw. Something is fubar there. Go to the hardware store and have them match threads for you on an 89 cent machine screw to test things out. If it threads in just fine, buy another field strip screw. If it doesn't contact an airsmith to retap the threads or get yourself a tap and do it at home.
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Old 11-03-2009, 09:01 AM   #5 (permalink)
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It's a 10/32 machine threaded bolt. I can't remember the length 3/4" or 1".
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Old 11-03-2009, 10:48 AM   #6 (permalink)
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Yup thats not even close. If the threads seem good on the field strip bolt you should try the hardware store bolt first. Find out how much the 10/32 tap is while your there. It sounds like the threads need to be chased.
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Old 11-03-2009, 01:38 PM   #7 (permalink)
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I've got the same problem with a valve of mine. It isn't quite that bad though.

Mine is definitely the threading inside the valve. I've got to get a tap and clean it up.

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Old 11-03-2009, 03:40 PM   #8 (permalink)
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I tried the rear bolt from my mag and it does the same thing in that valve. I think you guys are right about getting a tap in there.

Last edited by dundadun; 11-03-2009 at 04:06 PM.
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Old 11-03-2009, 05:03 PM   #9 (permalink)
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look for a "bottom" tap. I don't think a "plug" tap will go deep enough, but bottom taps can be harder to find.

Use oil and when it gets harder to turn, back it out a half turn and continue and repeat.

If you have at least a bolt diameter of thread engagement in the valve, I would consider cutting the bolt down if you can't find a tap that works.
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Last edited by Spider!; 11-03-2009 at 05:07 PM.
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Old 11-03-2009, 10:24 PM   #10 (permalink)
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Definitely try a bottoming tap first. Be really careful not to put to much torque on it as it could break when it hits the bottom or the hole. If you cut the field strip bolt you will not have very much thread left at all. Maybe only 50% of the thread will be left. Its still an option but likely the tap will be not to expensive.

Take the Field strip bolt to confirm the thread when your getting the tap. I'm pretty sure about 10/32 but my son reminds me I'm getting older, lol.
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