Master cylinder to booster nuts size needed

[houston_t]

Anyone know the size of the nuts used to secure the master cylinder to the booster ? Cant find mines.

 

[pontiacgp]

10 x 1.5 mm

 

[houston_t]

10 x 1.5 mm

Thanks.

 

[69hurstolds]

GM p/n 11502812

Originals had green nylon locking threads. Replacements are simply crimped.

 

[houston_t]

GM p/n 11502812

Originals had green nylon locking threads. Replacements are simply crimped.

Can I just use a lock nut from the hardware store ?

 

[69hurstolds]

Yeah, you could. Some people prefer GM parts, and that is the part number. The size and locking ability is the important part.