BSA Owners' Club Workshop Discussions

The BSA Workshop => Twins => Topic started by: chrisx1 on 10 Aug, 2023, 13:36

Title: Thread size
Post by: chrisx1 on 10 Aug, 2023, 13:36
Can anyone tell me the thread size of the under petrol tank bracket bolts.
Part No. 21-6050 They are 5/16" and I suspect 24 teeth per in but would like it confirmed before I put a tap into the old threads.
Title: Re: Thread size
Post by: Greenfield on 10 Aug, 2023, 14:41
They should be BSF 5/16"-22x1/2".
Title: Re: Thread size
Post by: chrisx1 on 10 Aug, 2023, 16:13
Thank you. :)