Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Normal
Don't know who provides sets, but timing cover are 1/4 - 20 (BSW) X 1" and primary cover screws are 1/4 - 26 (CEI) X 1". 1/4-20 BSW are 55 degree threads while 1/4 - 20 UNC are 60 degree. Some people use UNC screws in the BSW threaded holes, but the mismatch angle will be weaker. Timing cover screws are the same thread form for Atlas, N15/G15, early Commando and P11. '71-up Commando are UNC. N15/G15 and P11 primary cover screws are the same thread form.I buy the stainless screws by the bag from the UK and cheesehead or allen head are usually available.
Don't know who provides sets, but timing cover are 1/4 - 20 (BSW) X 1" and primary cover screws are 1/4 - 26 (CEI) X 1". 1/4-20 BSW are 55 degree threads while 1/4 - 20 UNC are 60 degree. Some people use UNC screws in the BSW threaded holes, but the mismatch angle will be weaker.
Timing cover screws are the same thread form for Atlas, N15/G15, early Commando and P11. '71-up Commando are UNC. N15/G15 and P11 primary cover screws are the same thread form.
I buy the stainless screws by the bag from the UK and cheesehead or allen head are usually available.
