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Subject: Part Number?

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Farmer Dan    Posted 09-05-2018 at 08:45:44 [URL] [DELETE]        [Reply] [Email]  
  • Part Number?
  • Any one know if this screw has a part number?

    Tim Daley(MI)    Posted 09-05-2018 at 13:44:20 [URL] [DELETE]        [Reply] [No Email]  
  • ALTERNATE TAKE
  • TOH said he found some 8-32 steel binding head screws. Here is one that may be the ticket, 8-32 x 5/16 L Binding Head. The only thing I don't like is the head thickness at .105". A machined radius on the head may weaken it some.


    TPD

    Farmer Dan    Posted 09-05-2018 at 16:51:19 [URL] [DELETE]        [Reply] [Email]  
  • Re: ALTERNATE TAKE
  • This is the one I'm using

    https://www.mcmaster.com/90114a546

    Tim Daley(MI)    Posted 09-05-2018 at 19:07:37 [URL] [DELETE]        [Reply] [No Email]  
  • Re: ALTERNATE TAKE
  • It's a moot point now since you already have a 100 or so to work with, but their Brass SHCS fits all the criteria size-wise as the original except the head diameter. The original is .344" and theirs is .270". All other dimensions are equal. The hexagonal socket makes a suitable well like the original has for the coil spring. See LINK...

    TPD

    Farmer Dan    Posted 09-08-2018 at 14:36:19 [URL] [DELETE]        [Reply] [Email]  
  • Cross Your Fingers!!!
  • The new 9N12100 distributors sold by Tisco come from SMA. SMA has them made by WAI Global, you guessed it in China. I sent them an email with a picture of the 9N12159 primary contact screw. Lets hope they can sell me a handfull. yes I am bored and have nothing better to do LOL.

    Tim Daley(MI)    Posted 09-09-2018 at 15:22:13 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Cross Your Fingers!!!
  • Keep us posted. If they will do a quantity like 50 or 100, I'd gladly go in halves with you. Of course the costs involved will determine any final decision. Ask too about the plug it goes into. It seems Carpenter or Barkley would have already explored that avenue though.

    Tim Daley(MI)

    Farmer Dan    Posted 09-05-2018 at 14:54:01 [URL] [DELETE]        [Reply] [Email]  
  • Re: ALTERNATE TAKE
  • I have a holder I made for my lathe, I put one of those brass binding screws in it, touch it with a 5/16 drill bit and its done. Got a box of a hundred that I've been working on. I just wanted the part number to put on the box when I'm done.

    thanks

    Tim Daley(MI)    Posted 09-05-2018 at 13:35:04 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Part Number?
  • Found the info- ironic it was almost a year ago to the day...

    8-32 x 3/8 L Brass Fillister Head screw


    Tim

    Tim Daley(MI)    Posted 09-05-2018 at 13:24:47 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Part Number?
  • Found our archived discussion on this screw---91A designates 1939 as year module it was first used on. This screw crossed over to several FORD distributors. TOH says get a fillister head and dot the center with a radius -I'd use a ballnose endmill -fast and simple.

    Tim Daley(MI)

    Tim Daley(MI)    Posted 09-05-2018 at 13:13:06 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Part Number?
  • Yes, Steve is correct, the FORD part number is 91A-12159, but cannot find the details on it. The MPC’s show it and states it also uses p/n 34938-S, Washer, #8 external tooth, and p/n 351260-S, washer, .187”” I.D. x .310: O,D. x .020” thick Plain Brass. I know we discussed making these several months ago, maybe a year ago. I thought we had found a stock wide head screw from McMaster-Carr that would work and TOH had bought some that would be close enough for hand grenades and horseshoes with slight modification -dish/radius out the top of head. I'd have to dig out my manuals to decipher the 91A code -module first used. Like there's 40, 18, 52, 81A, 68 et al.

    Tim Daley(MI)

    Steve-N-TN    Posted 09-05-2018 at 12:18:15 [URL] [DELETE]        [Reply] [Email]  
  • Re: Part Number?
  • Dan, it does have a part number 91A-12159 but it is listed by most suppliers as no longer available. I seem to remember Dell a long time ago recommending using a #8-32 sockethead (allen head) as a replacement.

    kriss (or)    Posted 09-05-2018 at 11:07:22 [URL] [DELETE]        [Reply] [Email]  
  • Re: Part Number?
  • I make my own as I know of no place to buy them.
    Let me know and I can make you one for the shipping fee.

    Farmer Dan    Posted 09-05-2018 at 11:12:20 [URL] [DELETE]        [Reply] [Email]  
  • Re: Part Number?
  • I make them too, just wondering if there is a number for them.

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