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Aren't these standard?

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I'm trying to find 2, 5/16" - 24 tpi (fine thread) x 3/8" L slotted round head machine screws. Seems everything now days is blister packed and stops at 1/4-20. Anyone know of a source?
 
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BFBOB

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Not for sure, but you might try the usual suspects, McMaster-Carr and Fastenal. Good online sources - and maybe Enco, if as I'm guessing these are used in bolting down machine tool fixtures?
Good luck.
 

Trucky

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Not really... they're harder to source than you might think. I'll look around and see what I can find.


As far as 5/16-24 slotted round head machine screws go.. McMaster is out. MSC is out. Fastenal is out. Meh.

MSC has a metric truck load of 5/16-24 SHCS, if those are acceptable.
 
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These are replacement fill "plugs" for my floor jacks. Never though this would become a problem! I searched the usual suspects first, and every other pretender on the net. I may relent and use the hex or star, but really want the slotted screw if possible.
 

Trucky

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Why not get a SHCS and JB weld on a round head? Heck, a piece of 5/16-24 all-thread would do you just fine.. just get a few 5/16-24 round head machine screws to "frankenstein" the heads from.

If that's really what you're after.
 

Stuart in MN

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The Ace hardware down the street from me has a pretty good selection of screws and bolts in bulk, if you have one nearby I'd try there.
 
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I've done a pretty fair search on line and been to 3 autoparts stores, 2 hardware, and 2 big box stores so far. Nothing even close. I'm really shocked. Seems such a simple screw! Thanks for the substitute ideas so far.
 

PETE14

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What kind of jack (manufacturer, year, ect)? Any chance it could be sourced straight from the OEM as a spare part?
 
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LeonardY

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I had problem finding a slot headed screw for a vintage yacht. I ended up taking hex head bolts turned and shaped them into round heads with a file on the lathe. Cut a slot with a slitting saw. Worked great.
 
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Thanks for all the offers. We've sent an email to Nutty. All the other vendors offered have been contacted with "NO". Rounding a hex and slotting it was my thought as well, just didn't want the job. These are for obsoleted Walker jacks. I'll talk to Hiball. He's probably got a solution. Just seemed such a simple bolt need that should be standard at the local hdw.
 
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