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Posted: 5/21/2020 7:01:09 AM EDT
[#1]
use loctite
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Posted: 5/21/2020 7:03:14 AM EDT
[#2]
Just use a dab of blue 242, will hold but able to remove later if needed.
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Posted: 5/21/2020 7:08:49 AM EDT
[#3]
Is it the bushing coming loose or the actual screw itself?
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Posted: 5/21/2020 7:09:55 AM EDT
[#4]
Quote HistoryOriginally Posted By LastRites: Is it the bushing coming loose or the actual screw itself? loctite both |
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Posted: 5/21/2020 7:15:41 AM EDT
[#5]
Quote HistoryOriginally Posted By LastRites: Is it the bushing coming loose or the actual screw itself? It is the screw. It I use the blue locktite will I be able to break it loos without loosening the bushing itself? |
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Posted: 5/21/2020 7:22:08 AM EDT
[#6]
I use vibratite vc3 on my grip screws.
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Posted: 5/21/2020 7:25:44 AM EDT
[#7]
Quote HistoryOriginally Posted By vet14tango10: I use vibratite vc3 on my grip screws. Correct me if I am an idiot. Vibratite is used to keep scres or bolts in place, but is not permanent. As in it will hold for normal use (gunfire) but if I use a allen wrench it will back out, right? |
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Posted: 5/21/2020 7:41:28 AM EDT
[#8]
Put a dot of loctite on the screw. Brush it into the threads like you were piling a part. Let it dry til it’s gummy. Install. That gives some fill to the loose thread fit and drag to prevent backing out.
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Posted: 5/21/2020 8:15:16 AM EDT
[#9]
loctite 242 screw
degreased screw nail polish screw Elmer's glue screw vibratite screw Shellac screw Permatex Hi Tack Gasket Sealant screws o-ring under screw head all the above will work |
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Posted: 5/21/2020 8:34:53 AM EDT
[#10]
Quote HistoryOriginally Posted By Shinji_Ikari: Correct me if I am an idiot. Vibratite is used to keep scres or bolts in place, but is not permanent. As in it will hold for normal use (gunfire) but if I use a allen wrench it will back out, right? Quote HistoryOriginally Posted By Shinji_Ikari: Originally Posted By vet14tango10: I use vibratite vc3 on my grip screws. Correct me if I am an idiot. Vibratite is used to keep scres or bolts in place, but is not permanent. As in it will hold for normal use (gunfire) but if I use a allen wrench it will back out, right? Correct. Apply vc3 per instructions. Tighten screw until it makes contact then lightly snug it down. No need to muscle it. |
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Posted: 5/21/2020 1:21:41 PM EDT
[#11]
They also make rubber o rings to put under the screws.
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Posted: 5/21/2020 5:41:22 PM EDT
[#12]
On grips with no "give" like G10 or aluminum, you really need an O-ring to provide some pressure and friction on the grip screw head.
Wood grips generally don't have that issue if the screws are reasonably tight. Either way I like to use a low-strength threadlocker on the grip screws themselves. The grip bushings, I usually install with medium strength threadlocker. |
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Posted: 5/21/2020 7:03:29 PM EDT
[#13]
Quote HistoryQuoted: I use vibratite vc3 on my grip screws. I flea-bayed some of this, should be here inside of a week. Plan to put a small amount on each screw, tighten, wipe down. Will also give time for it to cure. |
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Posted: 5/21/2020 9:50:21 PM EDT
[#14]
I had the same issue with my STI. I put a little dab of clear nail polish on the threads and problem solved. Easy to remove too.
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Posted: 5/22/2020 10:59:56 AM EDT
[#15]
O-rings and a dab of grease on the threads. Torque to 10 inlbs. Have fun with the Loctite should the bushing break free instead of the screw.
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Posted: 5/22/2020 9:42:58 PM EDT
[#16]
I had this issue and noticed it was more prominent when the frame started getting toasty after lots of rounds.
Somehow the thermal cycling would loosen the screws even though I had tightened them as tight as I was comfortable with. I ended up using the o-rings and being a bit aggressive with my torquing. I figure if I jack up a bushing it’s not the end of the world. Anyone ever see a torque spec for the grip screws? I looked pretty thoroughly through my kuhnhausen books but didn’t see one. |
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Posted: 5/23/2020 2:19:46 AM EDT
[#17]
Quote HistoryQuoted: Anyone ever see a torque spec for the grip screws? I think Challis recommends 5, but I use 10. |
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Posted: 5/23/2020 6:57:00 AM EDT
[#18]
Often times grips come loose because they don't fit snug around the bushings. Blue Loctite might hold, but in those cases the O-rings work best as they squish into the grips and prevent any movement. I used blue Loctite on my Kimber recently, and when I went to pull the grips back off one of the bushings came out. If that happens just degrease the bushing and frame hole and re-install the bushing with a little bit of red Loctite, being careful not to cross-thread the bushing.
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Posted: 5/27/2020 4:10:31 PM EDT
[#19]
Got some vibratite last night, this morning I took the screws out, cleaned with isotopal ETOH, put some on the threads and tightened down. Not sure when I will get to go back to the range, but I hope soon.
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Posted: 5/30/2020 3:15:14 PM EDT
[#20]
Quote HistoryQuoted: It is the screw. It I use the blue locktite will I be able to break it loos without loosening the bushing itself? Quote HistoryQuoted: Originally Posted By LastRites: Is it the bushing coming loose or the actual screw itself? It is the screw. It I use the blue locktite will I be able to break it loos without loosening the bushing itself? There are multiple ways of dealing with this. Degrease the screw thread and internal bushing thread. Screw it down tight. Put a rubber o-ring between the screw head and grip to provide spring pressure to lock the screw. Use locking (permanent) Loctite on the bushing to frame joint. Use weaker Loctite on the grip screws. If you ever need to remove the bushings you heat them with a soldering iron and the Loctite breaks down. |
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Posted: 5/30/2020 3:55:55 PM EDT
[#21]
Quote HistoryQuoted: I think Challis recommends 5, but I use 10. Quote HistoryQuoted: I think Challis recommends 5, but I use 10. How much torque do you recommend for grip screws? When using the Challis Hex Drive Bushing system with both O-rings, we suggest the grip screws be installed with 5 in/lbs of torque for wood grips. Higher torque may cause the wood to crush over time. Up to 12 in/lbs can be used for hard materials, but with any material 5 in/lbs is sufficient to hold the grips tight and prevent grip screws from loosening. I use their bushings, bushing o rings, and grip screw o rings. No issues with grips coming loose any more. |
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