seasons greetings , just noticed the almost new grips i recently bought for a late 1960's d frame det special the grip screw is larger than normal , did colt place a larger grip screw in and about when ??any ideas.
many thanks rj
Post-War Colts generally have a blue stock screw with a head about .25-inch inch diameter, and no escutcheon around the screw head side of the stocks. The screw directly contacts the stock wood in a recess.
Pre-War Colts have a much smaller screw head, about .125-inch in diameter that is nickel-plated. The screw head side of the stocks has an escutcheon. The screw contacts the escutcheon set in a recess and not the wood.
The stocks you have sound correct for a 1960s Colt.
By the way, Colts have "stocks," not "grips." If you are a Colt person, you need to use the correct terminology!