+- Austinsevenfriends (https://www.austinsevenfriends.co.uk/forum)
+-- Forum: Austin Seven Friends Forum (https://www.austinsevenfriends.co.uk/forum/forumdisplay.php?fid=1)
+--- Forum: Forum chat... (https://www.austinsevenfriends.co.uk/forum/forumdisplay.php?fid=14)
+--- Thread: Whitworth/ UNC Screws (/showthread.php?tid=1517)
Whitworth/ UNC Screws - Zetomagneto - 31-07-2018
I am hoping someone can help, I am looking for some raised head countersunk screws size no 12 x 24
UNC or 7/32” Whitworth.
An internet search was fruitless, these are an obsolete size, just hoping someone may have some, well 10 actually please.
RE: Whitworth/ UNC Screws - stuartu - 31-07-2018
Slotted? How long? Westfield Fasteners list a Phillips headed version in lengths up to 1" here:
www.westfieldfasteners.co.uk/A2_ScrewBolt_PhilRaCsk_UNCoarse_0.2160.html
Regards,
Stuart
RE: Whitworth/ UNC Screws - Zetomagneto - 31-07-2018
(31-07-2018, 08:52 PM)stuartu Wrote: Slotted? How long? Westfield Fasteners list a Phillips headed version in lengths up to 1" here:Thanks Stuart, I have seen those but don’t want Philips screws on my seven.
www.westfieldfasteners.co.uk/A2_ScrewBolt_PhilRaCsk_UNCoarse_0.2160.html
Regards,
Stuart
I could get some and have them tig welded and recut a slot.I may just have to put up
with them thanks anyway
RE: Whitworth/ UNC Screws - bob46320 - 31-07-2018
7/32 is 5.556 mm 0BA is 6mm and as the Austin wasn't metric I would hazard a guess that you should look for 0BA
This site shows 3/16 BSF http://www.stainlessautomotivefastenings.co.uk/index.php?main_page=product_info&cPath=117_61&products_id=8824
Also 0BA raised countersunk
https://www.stainlessautomotivefastenings.co.uk/index.php?main_page=advanced_search_result&search_in_description=1&keyword=0BA&inc_subcat=0&sort=20a&page=2&zenid=1p24nu3o2560c9nmrtbd37r4j6
You can identify a 12-24 screw by measuring the diameter with a ruler at slightly less than 7/32″ (slightly larger than 3/16″ or 0.210″).
RE: Whitworth/ UNC Screws - Phil Kingdom - 01-08-2018
You could always re-thread a M6 to 7/32 Whit, I just tried it on a mild steel bolt as a test and the thread came out OK.
RE: Whitworth/ UNC Screws - Zetomagneto - 01-08-2018
(31-07-2018, 10:16 PM)bob46320 Wrote: 7/32 is 5.556 mm 0BA is 6mm and as the Austin wasn't metric I would hazard a guess that you should look for 0BA
This site shows 3/16 BSF http://www.stainlessautomotivefastenings.co.uk/index.php?main_page=product_info&cPath=117_61&products_id=8824
Also 0BA raised countersunk
https://www.stainlessautomotivefastenings.co.uk/index.php?main_page=advanced_search_result&search_in_description=1&keyword=0BA&inc_subcat=0&sort=20a&page=2&zenid=1p24nu3o2560c9nmrtbd37r4j6
You can identify a 12-24 screw by measuring the diameter with a ruler at slightly less than 7/32″ (slightly larger than 3/16″ or 0.210″).
Hi Bob,0BA is close to 1/4” and too big, 3/16 is too small, 1/32” undersize.
Thanks for suggestions.
(01-08-2018, 12:23 AM)Phil Kingdom Wrote: You could always re-thread a M6 to 7/32 Whit, I just tried it on a mild steel bolt as a test and the thread came out OK.
Thanks Phil, sounds like a plan,will try that