I’m trying to replace a grip screw on an early model of 1905 bayonet (1909 dated SA). I bought a catch lever assembly for the later models (1942+), and quickly discovered that the it is too large to thread into the escutcheon.
The screw that came out of the bayo has a shaft dia of .1515”. At the end of threads (at shaft), it measures .1505”. It appears to taper to .1470” at the thread start, but that could be due to oxidation, use, and age. The bayo has been blued (came in the bright from the factory), so it has been reworked at some point. If I understand correctly, likely before 1917 (most were parkerized when returned to the arsenal).
The later model screw measures .1585” at the shaft and .1550” at the thread OD.
At 32 tpi, it’s a coarse thread, but seems to fall between a #6 and a #8.
Can anyone shed light on this? I’m finding it incredibly difficult to find a replacement grip screw for early versions.
Thanks in advance.
The screw that came out of the bayo has a shaft dia of .1515”. At the end of threads (at shaft), it measures .1505”. It appears to taper to .1470” at the thread start, but that could be due to oxidation, use, and age. The bayo has been blued (came in the bright from the factory), so it has been reworked at some point. If I understand correctly, likely before 1917 (most were parkerized when returned to the arsenal).
The later model screw measures .1585” at the shaft and .1550” at the thread OD.
At 32 tpi, it’s a coarse thread, but seems to fall between a #6 and a #8.
Can anyone shed light on this? I’m finding it incredibly difficult to find a replacement grip screw for early versions.
Thanks in advance.