Distributor cam screw

[Y-Blockhead]

Note the newer repro ( thin flat washer and thin lock washer )

has been replaced with one lockwasher that is as thick as the lock washer and flat washer together.

Bratton's has the thin lockwasher and flat washer. Some other vendors just have the thick lock washer. https://www.brattons.com/DISTRIBUTOR-CAM-SCREW-WITH-HOLE/productinfo/17520/

 

[katy]

You will note that the threads are different than any other! I don't even know the thread size! I'm pretty sure it's another one of Henry's weird metrics. DON"T LOSE IT OR WRECK IT! Neither Lowes or Home Depot has it. So be patient, it will come loose! Good Luck!
Terry

IIRC the thread size is 5/16" X 30 TPI

 

[Terry NJ]

Well, 5/16, or .312, or 8mm are all the same. On another site, it is given as a .325 X 30 TPI. Some allusions were made regarding the use of a "puller". I'm guessing that because of the difficulty of getting stuck distributers out, some attempts to make a puller using the shaft were made. If I'm correct about that, then Henry may have discouraged them by using that weird, stand alone thread. AFAIK It exists no where else.
Terry

 

[Bob C]

The screw is A-20744 .325-30 U.S.F.

 

[Ramman]

Sposs we'll here back from Jim to see if he got his screw loose?