The AM Forum

THE AM BULLETIN BOARD => Technical Forum => Topic started by: KE7NL - Jack on December 12, 2018, 12:32:23 PM



Title: Rack Panel Screws
Post by: KE7NL - Jack on December 12, 2018, 12:32:23 PM
Is there a "standard" screw rot 19" Rank Panels?  If so, what is it?
TNX
KE7NL


Title: Re: Rack Panel Screws
Post by: KA2DZT on December 12, 2018, 01:29:04 PM
Most racks use 10-32 screws


Title: Re: Rack Panel Screws
Post by: KA3EKH on December 12, 2018, 01:29:38 PM
Don’t understand what you are asking. The standard 19” rack screw is a 10/32 thread and I know that Mid Atlantic sells Phillips head screws that are black and come in jars of 1000 or so. They also sell square bit rack screws that are the same for use in high security locations. Older racks sometimes used 10/24 thread and real old RCA racks used #8/24 screws.



Title: Re: Rack Panel Screws
Post by: K4NYW on December 12, 2018, 02:38:54 PM
Is there a "standard" screw rot 19" Rank Panels?  If so, what is it?

10-32 and 12-24 are the common sizes.
10-32 is easy to find but 12-24 probably isn't at your local hardware store.
Truss-heads are good - McMaster-Carr has truss-head 12-24 here
https://www.mcmaster.com/91770A296   (3/4")
https://www.mcmaster.com/91770A291   (1/2")


Title: Re: Rack Panel Screws
Post by: KK4YY on December 12, 2018, 05:25:10 PM
Server racks use the "hard to find" 12-24 screws. I bought ones like these on Ebay:
https://www.ebay.com/itm/12-24-Thread-Rack-Mount-Screws-Bolts-Black-Oxide-w-Nylon-Washer-50-Pack-Lot/400973953240?hash=item5d5be8f8d8:g:puIAAOSwPcVVxR4N:rk:2:pf:0
Work like a charm.

Don


Title: Re: Rack Panel Screws
Post by: KA2DZT on December 12, 2018, 09:34:20 PM
Don’t understand what you are asking. The standard 19” rack screw is a 10/32 thread and I know that Mid Atlantic sells Phillips head screws that are black and come in jars of 1000 or so. They also sell square bit rack screws that are the same for use in high security locations. Older racks sometimes used 10/24 thread and real old RCA racks used #8/24 screws.



I have old RCA racks that use 12-24 screws


Title: Re: Rack Panel Screws
Post by: MikeKE0ZUinkcmo on December 13, 2018, 12:34:57 AM
I've got truss head 10-32s, but you'll need to get your own washers if you want them.    If you only need 25 or so I'll just send them to you.   PM me if you want.

How many do you think you'll need?  

(https://photos.smugmug.com/BENCHES/Big-Pics/i-KvNmcCc/0/380d3c72/M/DSC_0822-M.jpg)

(https://photos.smugmug.com/BENCHES/Big-Pics/i-D5NNJ4v/0/00c2ccdd/M/DSC_0817-M.jpg)


Title: Re: Rack Panel Screws
Post by: W4RFM on December 13, 2018, 08:53:19 PM
You can also use faucet washers that come in packs of "too many" with rack screws.
AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands