Review on Danco 1 inch OD x 3/4 inch ID, Rubber 🔍 O-Ring #15 (10 per Card, 96732) - Top Quality, Affordable Sealing Solution! by Tommy Hilmy

Identical to o-rings I bought from VZ Grips. Put them on some of my 1911s to keep the grip screws from loosening from recoil. Problem solved and it's easier than using Loctite. They also prevent over-tightening which can damage the bushings. A note: if you have thin grips (factory fitted to my Les Baer Ultimate Tactical Carry) they may be too thick. With the rings installed, the shorter bolts would not reach the shorter bushings. As a result, I replaced the thin lines with a standard kit. Essential for every 1911 owner.