Hiatt Darby 104 Key Dimensions?
You're right, the thread is between m6 and 1/4 hence 7/32 and being English , assume whitworth form
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Hiatt Darby 104 Key Dimensions?
I am going to make a tap for my hiatt cuffs and after careful measuring I have determined the thread as 7/32 whit 12 tpi. The 12 came from screwing in a piece…