"Paul Drahn" wrote in message
...
On 1/27/2012 5:09 PM, Tom Gardner wrote:
I need to make thousands of fasteners consisting of 1/4" x 4" threaded
rod with a 20 degree bend in the center. The ends will each get a 1/4"
nylon-insert lock nut. I plan on doing the bend on a punch press. I'm
concerned about:

-What grade of All-thread so the rod doesn't crack at the bend?

-How to cut the rod? (parting die on punch press, bandsaw, cut-off wheel
in chop saw, etc)

-How to deburr so the nuts will start?

This is for a new product so I will be ramping up and might have to
change methods according to demand.
You have had lots of great suggestions, now for mine. I discovered this
video a while back when I was looking for u-bolts to use in mounting a new
ham radio antenna to a steel mast.

http://www.youtube.com/watch?v=-xR1tYzCQpk

This is perfect for your need, if you just change the dies and machine
stroke. And use rods that are already threaded on the ends.

Good luck!

I had to make my own u-bolts using 3/8 stainless steel rods. Threaded ends
with a die in the lathe, then used a hand powered metal bender.

Paul

Thats a cool tool, bookmarked that video.

Best Regards
Tom.
--
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