The BSA A7-A10 Forum
Technical (Descriptive Topic Titles - Stay on Topic) => Frame => Topic started by: David on 28.07. 2016 16:12
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A nut has come adrift on my footrest stud. (57 A10 Road Rocket) Does anyone know what thread it is please, as it's causing me some confusion. The rod is 1/2 diameter but the thread is 20 TPI. Any suggestions please? Thanks. David.
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It's BSC (cycle) thread
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but the thread is 20 TPI.
1/2 inch and upwards is 20TPI 7/16 can be 20 or 26 TPI
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I hadn't realised that there are 20 TPI and 26 in BSCy. thanks.