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Cox Engine of The Month
May-2024
1/2A Nut's

"Cox Tee Dee .051 RC Marine"



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The ellusive 2/56 Empty The ellusive 2/56

Post  rsv1cox Tue Jan 16, 2024 2:31 pm

They go missing. Tiny ones must have feet, both machine screws and nuts.

I have a bunch, 98% are 1" and 1 /1/2" long and I'm always cutting them to length and dressing the bitter end. No more! Got on-line yesterday and ordered every length and head shape used in this hobby. Didn't even fool with McMaster/Carr or the Nut/Bolt factory. Assortments and loose. $3.95 per 100. Pretty cheap but I probably could have done better. Doesn't matter, I'm set for the duration.

The ellusive 2/56 2-56_s10
The ellusive 2/56 2-56_m10
The ellusive 2/56 2-56_a10
The ellusive 2/56 2-56_a11



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Post  roddie Tue Jan 16, 2024 2:45 pm

Good to have Robert.. I'm an advocate for being well stocked with machine-screws. When things were made to last; they were put together using them.. nuff said about that..
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Post  roddie Tue Jan 16, 2024 3:21 pm

Oh and yes.. Babe Bee .049 the Cox .049/Bee engines use 2-56 machine screws to hold their back-ends on... Let's not count the different lengths/head-styles of 2-56 screws associated with those engines...

The "Fillister-head" screws are a good example of the quality-engineering that went into the Cox engines.. early-on.
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Post  944_Jim Tue Jan 16, 2024 4:37 pm

Is that an eBay purchase, Bob?

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Never enough time to build them all...always enough time to smash them all!
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Post  rsv1cox Tue Jan 16, 2024 5:18 pm

944_Jim wrote:Is that an eBay purchase, Bob?

Yes, Three different assortments, plus bulk (100 ea.) in these sizes 1/4", 5/16", 1/2" and 1" from Orchodsound electronics.  Plus whenever I order from Bernie or Matt I always add case screws for the different engines.  They package them so well and fit perfectly.  I just got sick of modifying them.

I use them mostly for engine mount screws, but also for other things.
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Post  Kim Wed Jan 17, 2024 7:45 am

       BOB!
You're Costing Me Money!!!
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Post  rsv1cox Wed Jan 17, 2024 9:42 am

Kim wrote:        BOB!
You're Costing Me Money!!!

Glad to help Kim!!!  Smile Smile

2/56's were lacking in my inventory of nuts and bolts.  No more hunting and picking cutting and modifing.  Some will be here by friday.

I love assortments, everything but 2/56's. There is even a box of #5's in there.  

The ellusive 2/56 P1017011

My garage has bins and bins of SAE and Metrics.
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Post  cstatman Wed Jan 17, 2024 6:00 pm

brownells fillister heads???

oh oh, now I gotta look and see if they sell 2-56
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Post  944_Jim Wed Jan 17, 2024 8:57 pm

#5? You found #5, Bob? I need to check BoltMonster.com to see if they have #5...and #3 (engine mounts).

I've eyeballed the #2 set on the 'Bay before. Buying that way before for me in trouble with my bike work. Sometimes the vendors sell really soft fasteners. I learned to not trust them for suspension and engine stuff. I need to relax and know that these smaller fasteners are responsible for holding 1/3lb-1/2lb planes and not vehicles responsible for carrying life and limb at speed.
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Post  rsv1cox Thu Jan 18, 2024 1:55 pm

Well that was fast. Still two more assortments coming. Vivian Leigh in "Gone With The Wind" "As God is my witness I will never be hungry (without 2/56's) again." Smile Smile Smile

The ellusive 2/56 P1017027


Covid test kit's that Mark ordered from a Government agency arrived too.
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Post  rsv1cox Fri Jan 19, 2024 10:15 am

BTW, if your buying, look for slotted Fillister heads.  The Phillips heads just do not provide for the proper torque necessary to tighten these. The Fillister heads better fit the case mounts on Cox engines.
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Post  cstatman Mon Jan 22, 2024 6:04 pm

not fillister, not an assortment, but DEFINITELY RSV_Cox fault! Very Happy. (in a good way)

I saw the message. I already HAVE an assortment
I added a few items I needed more of

The ellusive 2/56 Img_0514
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Post  rsv1cox Tue Jan 23, 2024 6:17 pm

Good stuff Charles.

The last of my 2/56 adventures arrived today. Slot pan heads 100ea. four bucks and change. But......but..I found some fillister heads on McMaster Carr................

https://www.ebay.com/itm/335091920789
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Post  cstatman Wed Jan 24, 2024 10:48 am

$4 for 100 is pretty good....

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