|Originally Posted By strat81:
Originally Posted By USMC-Helo:
Pure speculation, the Orginal part is 1" long, its best to replace with a 1" in case there is something we don't know and there is a good reason why the designers choose for that screw to be 1" long.
Yes, the straight edge screw driver head is a pain to fish deep into the pistol grip, Torx head or Allen Head (hex) would be easier to position the screw and drive into the lower.
I was switching a Tango Down grip from one lower to another. The TD grip includes a hex-head screw that is slightly shorter (1/8", give or take) than the CMT and DPMS LPK screws in my lowers. The TD screw also had a bit of blue threadlocker on it. The instructions said to use the included screw and they provided a long allen wrench. It's a "dome" style head rather than a cap screw.
Well, that small nub on the end of the allen wrench makes it hard to apply any force, so getting past the threadlocker on disassembly was a pain. I eventually got it out, but tore up the head in the process.
I Loctite all of my grip screws and never had that problem with slotted screws. And since TD included a shorter screw, I was wondering if that was an issue at all.
I'll cruise by the hardware store on the way home and see what they have. Last time I needed a screw (for an M1), they didn't have it. Hopefully 1/4-28x1" is more common.
I also noticed the threads in the receiver were silver, not black. I hope I didn't mangle the threads.
Long story, short version...
I purchased 3 MOE grips, they did not feel good in my hand, even though the MOE is a nice grip. Replaced the MOE's with Tango Down Battle Grips.
The screw is 1/4 X 28 X 7/8". Which is too long and needs to be dremmeled/filed/ground to have the the last few threads rounded. I did this myself.
Also... the thin 1/64" plastic/washer that comes with the screw IS NECESSARY.
The grips were purchased on EE. One grip had the factory hex head screw and worked fine. One had what appeared to be the slotted screw from a MOE grip.
I had to get the screws from Fastenal, since none of the hardware stores or home improvement stores carried this type of screw.
Ideally a 1/4 X 28 X 3/4" screw would be my choice as it should not require modification to seat deep enough to eliminate the wobble in the grip.
Without the washer there was wobble.