[ARC5] 3-48 screws

[John Hutchins]

Catching up on Emails:

What about these:

https://www.albanycountyfasteners.com/black-oxide-fasteners/860.htm


Phillips Flat Head Machine Screws - 100 Degree Taper
1/4"-20 | Black Oxide 18-8 Stainless Steel



On 12/15/2018 12:30 PM, Michael Hanz wrote:
> I was with you all the way until the last sentence, Ken, but not 
> because I'm feeling argumentative.  Ronnie was specifically looking 
> for screws to hold the four Lord shocks on the mount.  Attached is the 
> build sheet for one of the 274-N mounts just for example, and all of 
> the sheets specify a Phillips head screw for some reason. Must be one 
> of those mysteries of science.
>
> On a related subject, I haven't had good luck with the fit and finish 
> of the Ebay 3-48 stainless screws compared with the ones from 
> McMaster-Carr.  They don't tolerate "oops slips" very well either, so 
> I stopped using that source almost as soon as I tried them.  But I 
> guess "ya pays yer money and ya takes yer cherce"...
>
>  - Mike  KC4TOS
>
> On 12/15/2018 12:16 PM, Kenneth G. Gordon wrote:
>> Seems like we go through this discussion at least once a year.
>>
>> The original screws were 3-48 BINDER HEAD, slotted, brass, 
>> cadmium-plated.
>>
>> For the receivers, there were at least 4 different lengths. I never 
>> investigated those used in
>> the transmitters.
>>
>> For many years, I have used ONLY 3-48 binder-head, slotted, stainless 
>> steel screws. I buy
>> them in quantity from either McMaster-Carr or from Fastenal.
>>
>> The SS screws look most like the original ones. I paint the heads of 
>> those which would be
>> black with flat-black model paint once they are installed.
>>
>> I also buy #3 internal-toothed stainless steel lock washers, and hex 
>> nuts, from the same
>> sources.
>>
>> I will not use Phillips head hardware. IMHO it looks trashy and most 
>> certainly does not look
>> original. The heads are all wrong for one thing.
>>
>> Ken W7EKB
>
>
>
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