Re: Coupler Mounting Screws

Douglas Harding

Matt you are right. Mine are 4-40, but I have used them to cut brass 2-56 screws.


Doug Harding


From: <> On Behalf Of Matt Goodman via
Sent: Friday, July 10, 2020 3:52 PM
Subject: Re: [RealSTMFC] Coupler Mounting Screws


Interesting. I’ve seen 4-40 shears on wire strippers, but not 2-56. The former works, but requires cleanup. Ironically, my full size strippers will cut down to the 4-40, whereas the smaller strippers that will do 30 gauge wire only goes down to 6’s.


Matt Goodman

Columbus, Ohio, US


On Jul 9, 2020, at 10:57 PM, Douglas Harding <iowacentralrr@...> wrote:


I have an electrician’s wire stripper that also is designed to cut a variety of small screw sizes, including 2-56. Works great on brass screws, gives a nice clean cut, just touch up with a file and I have one any length I want.



From: <> On Behalf Of Mont Switzer
Sent: Thursday, July 9, 2020 9:43 PM
Subject: Re: [RealSTMFC] Coupler Mounting Screws




Why I like the Delrin 2-56 screws is I can cut or trim them to the exact length that I want, with ease.  I've done this before and after installation with equal success.


Mont Switzer

From: [] on behalf of Benjamin Hom [b.hom@...]
Sent: Wednesday, July 08, 2020 1:12 PM
Subject: Re: [RealSTMFC] Coupler Mounting Screws

Wayne Cohen wrote: 
"In the distant past, I tried Kadee’s 2-56 Delrin screws to mount couplers.  Many of the heads snapped off in normal use and I quit using them. Slot or Phillips head - same results."


Slot or Phillips is irrelevant - why use plastic screws if electrical shorts are not an issue?  Use metal screws instead.



Ben Hom


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