AR-15 Grip Screw Issue - Page 2

skizzums · March 26, 2015, 07:51 AM

Even my Omni lower uses a large Allen screw with a lock washer. That's odd, I haven't seen a flat head pistol grip screw on anything except the 50$ lpk's

sigp226wgerman · March 26, 2015, 07:59 AM

Quote:

Originally Posted by skizzums

Even my Omni lower uses a large Allen screw with a lock washer. That's odd, I haven't seen a flat head pistol grip screw on anything except the 50$ lpk's

Colt still uses flat head grip screws. It is a lot easier to find a flat head than the perfect sized allen wrench.

skizzums · March 26, 2015, 05:40 PM

may be easier to find, but it would be a PITA to try to drill a screw that's 3" inside a grip. i'll take the allen.

bfoosh006 · March 29, 2015, 09:46 PM

Under certain circumstances, dis-similar metals can oxidize and "lock" themselves together in a virtually unbreakable bond. Maybe a sweaty finger left some residue on the screw which exacerbated this condition. I've seen this happen(the sweaty finger residue factor) on steel screws in aluminum engine parts.

I have also seen this "cold-welding" first hand. As a matter of fact I still have the cold welded / pressure welded parts as a reminder.

That is an entirely possible event.

March 26, 2015, 07:51 AM	#26
skizzums Senior Member Join Date: July 1, 2013 Location: Douglasville, Ga Posts: 4,615	Even my Omni lower uses a large Allen screw with a lock washer. That's odd, I haven't seen a flat head pistol grip screw on anything except the 50$ lpk's __________________ My head is bloody, but unbowed

March 26, 2015, 05:40 PM	#28
skizzums Senior Member Join Date: July 1, 2013 Location: Douglasville, Ga Posts: 4,615	may be easier to find, but it would be a PITA to try to drill a screw that's 3" inside a grip. i'll take the allen. __________________ My head is bloody, but unbowed

March 29, 2015, 09:46 PM	#29
bfoosh006 Senior Member Join Date: February 17, 2009 Posts: 1,089	Under certain circumstances, dis-similar metals can oxidize and "lock" themselves together in a virtually unbreakable bond. Maybe a sweaty finger left some residue on the screw which exacerbated this condition. I've seen this happen(the sweaty finger residue factor) on steel screws in aluminum engine parts. I have also seen this "cold-welding" first hand. As a matter of fact I still have the cold welded / pressure welded parts as a reminder. That is an entirely possible event.