Cooey model 600 22lr

[Pierremc]

Hi, I lost the action screw (bolt) while disassembling the gun. Can someone tell me the size, lenght of the bolt for reassembling my gun.

Thanks.

 

[IronCanadian]

I'll do my best; measurements are directly from the action bolt of my Winchester Cooey 600.

OAL = .727"

thread width is .247"

head width is .374"

calipers are set at .5" appears to be 15 threads in that .5" length.

 

[AikiNut]

Guessing 1/4-28? I counted 14 threads, and .247 is as close to .250 as damn is to swearing I can pull my cooey 75 out and check the threads on its screw but it's a cr#pshoot about whether or not the threads match. Well... that was a dead end. The screw on a 75 is captive, closer to 3/16, and finer thread. Couldn't get the thread gauge on it (not that it matters) Sorry, dead end.