This Japanese manufactured upper buttplate mounting screw with the finer thread is for the Type 38 Arisaka bolt action rifle in 6.5 caliber and is in good condition exhibiting a brownish gray patina with some rust and light slot wear. (file photo)
Note: Japanese Type 38 Arisaka bolt action rifles with the following arsenals and serial numbers have been observed with this part:
Koishikawa / Kokura: 00206, 00103467 & 887486
