[Healeys] bolt identification - another article

[Curtis Arndt]

Mirek,

Here's what I have for threads forms on Austin Healey 100s...

So how many thread forms are in a 100?



*Whitworth*

British Standard Fine (BSF)

British Standard Whitworth (BSW)

British Standard Pipe Parallel (BSPP)

British Standard Pipe Tapered (BSPT)

British Standard Brass (BSB)



*Other British fasteners*

British Association (BA)

British Standard Cycle (BSC)

Unified National Fine (UNF)

Unified National Coarse (UNC)

Unified Numbered Machine Screws. These machine screws are just an extension
of UNF and UNC fasteners. (Most common are n. 10-32 Phillips head screws
found extensively on all big Healeys and Sprites.)



*Other miscellaneous thread forms*

SAE Standard threads for spark plugs

Various wood and sheet metal screw
threads


Tyre valve threads

Cheers,

Curt
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