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+--- Thread: Thread size (/showthread.php?tid=1862)
Thread size - Tiger - 07-10-2018
Hello
Any idea what the thread size is of the window winder retaining screw.
Regards
Tim
RE: Thread size - Colin Morgan - 07-10-2018
Hi
On my car (1937 ARR) - 2BA - 4.7mm O.D.
Regards
Colin
RE: Thread size - Tiger - 07-10-2018
Thanks Colin
RE: Thread size - Ruairidh Dunford - 07-10-2018
I think this is actually another 3/16 BSF thread (like the fan blade securing screws) - they are very similar to 2BA.
RE: Thread size - Colin Morgan - 07-10-2018
3/16 BSF = 0.1875" diameter and 32 threads/inch
2BA = 0.1850" diameter and 31.36 threads/inch
You are right Ruairidh - they are very close - a new 2BA screw does fit - not sure what mine are now - they are somewhat worn, chromed but crossheaded, so not original?
Colin
RE: Thread size - Ruairidh Dunford - 07-10-2018
Within a gnat’s hair of each other!
RE: Thread size - David Cochrane - 08-10-2018
(07-10-2018, 10:18 PM)Colin Morgan Wrote: ... crossheaded, so not original?
Definitely not!
David (who has replaced 47 cross-head screws on his RP saloon - 72 to go!)
RE: Thread size - Colin Morgan - 08-10-2018
David,
I agree, cross-head screws look terrible on a Seven - but they came with the car and I have nothing else chromed of that size (3/16" BSF or even 2BA!).
Regards,
Colin
RE: Thread size - Zetomagneto - 08-10-2018
(08-10-2018, 06:12 PM)Colin Morgan Wrote: David,Hi Colin, Try here, I have had good service for BA https://www.polished-stainless.com/phdi/p1.nsf/supppages/3534?opendocument&part=8#bolts
I agree, cross-head screws look terrible on a Seven - but they came with the car and I have nothing else chromed of that size (3/16" BSF or even 2BA!).
Regards,
Colin
RE: Thread size - Colin Morgan - 08-10-2018
Thanks - Colin