Hawkeye, I would first make sure it is the screws loosening and not the bushings. I've seen this quite a bit lately. Several 1911s over the past few months have come in for one thing or another and in removing the grips I find the bushings are coming out with the screws. If this is the case they need to be restaked. If not Brownells (515) 623-5401 sells oversized grip screws Burrhead's suggestion is a good one. George