crosman 140 rear sight mounting screw

[Trunion]

I need a mounting screw for my 140, the old one is worn out and doesn't hold. I was wondering if anyone knows the thread & screw size. It might be a 6/32 or is it metric. I would appreciate any input. If it makes a difference it is the rear screw.

 

[DonR]

It is a 6-40, wide head and only 1/8" long. One source is JGAirguns:

https://www.jgairguns.biz/140-and-147-c-78_89_122/crs160029-rear-sight-screw-p-9915.html

 

[Trunion]

Thank you.