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+--- Thread: Windscreen Wiper Thread (/showthread.php?tid=7556)
Windscreen Wiper Thread - Rick F - 26-05-2022
Does anyone know the thread of the two securing bolts on a Ruby-type windscreen wiper?
RE: Windscreen Wiper Thread - AustinWood - 26-05-2022
I think electrical kit tends to be odd number BA threads. Even number for mechanical.
RE: Windscreen Wiper Thread - Bill Dixon - 26-05-2022
As far as I can remember they are 2BA.
RE: Windscreen Wiper Thread - Parazine - 27-05-2022
I think they're either 3BA or 5/32" Whitworth. It's very difficult to identify these two threads positively......
RE: Windscreen Wiper Thread - Rick F - 27-05-2022
Thanks guys. I have also been advised that they are 3BA by a seperate source
RE: Windscreen Wiper Thread - Dennis Nicholas - 27-05-2022
3BA has 34.8 threads per inch (tpi) dia 0.161 if that helps beware some modern/old house lighting switch boxes use very similar size screws but have significantly different threads.
Dennis
ps for older members, you will also have to purchase a good 2 stage magnifying glass as well as a screw thread gauge set
