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Thread: ASP 21 GOING CRAZY trying to find the propnut size and thread count??? HELP
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Old 07-09-2009 | 11:01 PM
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Campgems
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Default RE: ASP 21 GOING CRAZY trying to find the propnut size and thread count??? HELP
Do you have a set of calipers or a micrometer? Once you establish the thread OD, ( it will be a little undersized from the nominal size), the the thread cound is a given.

The Magunum line, same as the ASP, brackets your engine. The 28 uses a 1/4-28 thread and the 15 uses a 6MM thread. It has to be one of the two.

Don
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