A couple of our local ACE hardware stores have an enormous
nuts/bolts/screw departments, including your pan head 12-24 x 1/2" variety.
You can also get pretty close at Amazon.
https://www.amazon.com/Hard-Find-Fastener-014973457464-Phillips/dp/B01AKFCP3Y/ref=pd_ci_mcx_pspc_dp_2_t_5
bp
<part15sbs{at}gmail{dot}com>
On 6/10/2025 6:53 AM, Adam Moffett wrote:
In my bygone days of drafting, the most common American sizes I saw on
drawings were 10-32 and 1/4-20. I don't recall if I ever saw a 12-24
called out, but I remember noticing that everybody used 10-32 and
1/4-20. Although it's common for us in equipment racks, it might
truly be "odd" for the general population.
My local Home Depot seems to have small packets of 12-24. Not a box
of 100 though.
12-24 is used with some cage nuts and some racks, so I'd assume anyone
who sells rack hardware will have a big box of them available.
ShowMeCables or Rack Solutions, etc. Probably longer than 1/2" though.
-Adam
------------------------------------------------------------------------
*From:* AF <[email protected]> on behalf of Ken Hohhof
<[email protected]>
*Sent:* Tuesday, June 10, 2025 12:33 AM
*To:* 'AnimalFarm Microwave Users Group' <[email protected]>
*Subject:* [AFMUG] is 12-24 an oddball screw size?
I went to Ace Hardware today looking for a box of 12-24 x 3/8 or 1/2
pan head Philips machine screws, I had a box of 100 that I had used
up. The box said Hillman and I’m almost positive I bought it at Ace.
They had sizes from 4-40 to 10-32 and even 10-24, then it jumped to
1/4-20. Figuring my eyes or my brain were failing me, I asked someone
for help, and he told me 12-24 is an oddball size. He did find some
in the specialty screw drawers but at $0.45 each.
When did 12-24 become an oddball size?
I mostly use M6 now for rack screws, but I use 12-24 for things like
attaching DIN rail to backplates. My trusty Greenlee tap set isn’t
metric so I can’t use M6.
I’m sure I could order some from McMaster, I was just surprised the
hardware store didn’t have them in the bins.
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