Joined: Mar 2018 Posts: 694 Threads: 33
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Location: Lot region FRANCE
Sounds like 3/16" BSW if coarse or 3/16' BSF if fine (2BA is approx 3/16" diameter).
Joined: Aug 2017 Posts: 849 Threads: 123
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10.24 UNC might be ok & easier to find...
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Thanks Bob and David,
Someone has confirmed that the thread is 3/16BSF, all I need to do now is find some. Ruairidh's photo on the clutch spring thread shows that they have Cheese Heads.
Joined: Aug 2017 Posts: 29 Threads: 0
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I thought they were 2BA, at least I have a pot of brass cheese heads at work that fit and I thought they were 2BA. They are too long but I'll happily send you some if you would like, it's a large pot.
Joined: Aug 2017 Posts: 970 Threads: 117
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Location: Melton Mowbray.
Marcus,
They are 3/16" BSF but 2 BA will do the job as there is no great strain on them They are cheese head and are fitted with washers.
Joined: Aug 2017 Posts: 1,746 Threads: 42
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Location: Malvern, Victoria, Australia
And are fitted with springĀ washers if I remember.
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Location: N W Kent
10-32 UNF screws might be easier to find and will directly substitute for 3/16" BSF if you're stuck.
Joined: Aug 2017 Posts: 102 Threads: 10
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Thanks Tom, Chris and Tony,
I tried some 2BA which I have here, but they didn't go in very far before they jammed.
2BA has a tread pitch of 0.81mm and 3/16BSF is 0.79mm pitch. I could force the 2BA in but will try and get the correct screws first.
Joined: Aug 2017 Posts: 741 Threads: 8
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Location: N W Kent
Well, you could express 3/16" BSF as 0.79375 mm pitch, most people would say it's 32 Threads Per Inch which happens to be the same as 10-32 UNF