7/16-28 Bolt or Threaded Rod

[DampRobot]

Does anyone have a good source for 7/16-28 bolts or threaded rod? I've looked at MSC Direct and McMaster, and they don't appear to have any. We need one to go into a very specific mechanism which only mounts with a bolt of that size tapped into the end.

[AdamHeard]

Do you have a manual lathe?

Wouldn't be too crazy to just cut one.

[DampRobot]

Originally Posted by AdamHeard

Do you have a manual lathe?

Wouldn't be too crazy to just cut one.

We do... Although no one really seems to know how to use the threading setup.

[MrRoboSteve]

You might check Fastenal.

[DampRobot]

Originally Posted by MrRoboSteve

You might check Fastenal.

No juice.

[Chexposito]

Originally Posted by DampRobot

No juice.

Try calling them, if you looked on their website. Sometimes they have it somewhere, just not on their site.

Source: Worked in a factory, learned first hand calling is better.

[amainville]

Check out youtube for videos of thread cutting using your brand of lathe. Thread cutting is relatively easy once you figure out the basic operations of your lathe.

[Richard Wallace]

Could you just buy the die and cut threads on a rod? This thread size is fairly common for panel mounted electrical switches.

[T^2]

Originally Posted by Richard Wallace

Could you just buy the die and cut threads on a rod? This thread size is fairly common for panel mounted electrical switches.

I'll second this. I've had success with manually setting a die in a lathe tailstock chuck and turning the main chuck (with the rod in it) by hand.

[DonRotolo]

I'll third it.
Cutting threads on any length over a few inches on very thin rod with a lathe is very tricky, and requires a follower rest and the right tooling. And, even then, without experience, the threads won't be great.

A die will produce excellent threads of the right size on significant lengths of rod at a very low expense and relatively fast speed.

Remember, you don't need the whole length threaded, do you? Just the end...

Buy the die. Trust me.

[Seth Mallory]

Amazon lists the die for about 10$. If speed is important take the threaded barrel of a switch and solder it on a rod or bolt. Just make sure you have the treads in the correct spot when tight.

[roystur44]

Call Tony at Olander in Sunnyvale

[Seth Mallory]

Originally Posted by roystur44

Call Tony at Olander in Sunnyvale

I second this suggestion.