This Japanese manufactured front sight binding screw is for the Type 38 Arisaka bolt action rifle in 6.5 caliber when using the narrower front sight without the guards and is in good condition exhibiting a brownish gray patina with 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: 00103467