Non Standard Threads

[Bill Boudway]

Hi,

I need a source for fasteners with non standard threads.

1/4 X 24, 5/16 X 18, 3/8 X 18, ---- etc.

yes, I know they are Packard.

Any leads will be appreciated.

[Mike Dube]

Have you tried Fastenal? I have had luck with them in the past. You may need to buy in box quantity, which in my case was "not quite" two sets of head bolts.

[Dave Henderson]

5/16 x 18 is a standard "NC" thread. A typo ?

[joe_padavano]

I'm assuming you meant 5/16-20. In any case, 1/4-24 is used on early Harley motorcycles, so a Harley specialist should have those. The other option is that 6m-1.0 is virtually identical to 1/4-20 and 8mm-1.5 is nearly identical to 5/16-20.

[Bill Boudway]

Thanks for your replies.

Yes, Dave,

I'm lucky on the 5/16 size.

I'll check with the local Harley dealer for the 1/4 X 24

Others up to 5/8" are all 18 thread.

[Curti]

If it is made McMaster Carr has it. You can probably get them in LH thread if you want.

[Dandy Dave]

If all else fails, buy a lathe and cut your own. Dandy Dave!

[Friartuck]

Dandy Dave may have the best idea here, make your own. Travers Tools Metalworking Tools - Drills, End Mills, Taps, Machines, Measuring Tools, Abrasives, Power Tools and MRO Supplies | Travers Tool carries the non-standard taps. Hex stock in small quantities and short sizes can be obtained from Speedy Metals, Speedy Metals Online Industrial Metal Supply

Maybe you can strike an alliance with someone in your area who has a small lathe, you supply the tap and material.

[Seldenguy]

Bill, If you can't get the bolts threaded the way you need them let me know. I know a company that will make any bolt, any thread,and any length. ---Bob

[Terry Wiegand]

ONE OF THE BEST PLACES FOR THE OLD STYLE FASTENERS (SLOTTED HEAD) IS JAMESTOWN DISTRIBUTORS. THEY ADVERTISE AS A BOAT BUILDERS SUPPLIER BUT THEY HAVE SCREWS AND FASTENERS UP THE WAZOO. YOU CAN ALWAYS DO A GOOGLE SEARCH FOR SCREWS AND FASTENERS AND GO THAT ROUTE. SOMETHING THAT A LOT OF FOLKS DO NOT REALIZE IS THAT A LOT OF THE EARLY, AND I MEAN REAL EARLY, AUTOMOTIVE NUTS AND BOLTS WERE METRIC. I RAN INTO THAT WITH THE THREADED POST DELCO DISTRIBUTOR CAPS. YES, YOU HEARD IT HERE, THEY WERE METRIC. IF YOU HAVE SOMEONE MAKE BOLTS OR SCREWS FOR YOU, MAKE SURE THEIR SCREW CUTTING LATHE HAS METRIC CAPABILITY. YOU JUST MIGHT RUN INTO A SITUATION WHERE YOU WILL NEED THAT. DANDY DAVE KNOWS EXACTLY WHAT I AM TALKING ABOUT HERE. TERRY WIEGAND DOO DAH AMERICA

[Restorer32]

Just out of curiosity what is the application of these non standard threaded items?

[Dandy Dave]

ONE OF THE BEST PLACES FOR THE OLD STYLE FASTENERS (SLOTTED HEAD) IS JAMESTOWN DISTRIBUTORS. THEY ADVERTISE AS A BOAT BUILDERS SUPPLIER BUT THEY HAVE SCREWS AND FASTENERS UP THE WAZOO. YOU CAN ALWAYS DO A GOOGLE SEARCH FOR SCREWS AND FASTENERS AND GO THAT ROUTE. SOMETHING THAT A LOT OF FOLKS DO NOT REALIZE IS THAT A LOT OF THE EARLY, AND I MEAN REAL EARLY, AUTOMOTIVE NUTS AND BOLTS WERE METRIC. I RAN INTO THAT WITH THE THREADED POST DELCO DISTRIBUTOR CAPS. YES, YOU HEARD IT HERE, THEY WERE METRIC. IF YOU HAVE SOMEONE MAKE BOLTS OR SCREWS FOR YOU, MAKE SURE THEIR SCREW CUTTING LATHE HAS METRIC CAPABILITY. YOU JUST MIGHT RUN INTO A SITUATION WHERE YOU WILL NEED THAT. DANDY DAVE KNOWS EXACTLY WHAT I AM TALKING ABOUT HERE. TERRY WIEGAND DOO DAH AMERICA

Yes, If you are cutting Metric threads, you need a Metric lathe. Whitworth on the other hand.... ... Dandy Dave!