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1 Inch Jam Nuts

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  • 1 Inch Jam Nuts

    Does anyone have a source for 1 inch SAE jam nuts. I need them to be 1/4 to maybe a 1/2 inch thick.


    Jerry

  • #2
    Not sure if they have 'em, but if I were looking I'd start with www.mcmaster.com
    ----------
    Try to make a living, not a killing. -- Utah Phillips
    Don't believe everything you know. -- Bumper sticker
    Everybody is ignorant, only on different subjects. -- Will Rogers
    There are lots of people who mistake their imagination for their memory. - Josh Billings
    Law of Logical Argument - Anything is possible if you don't know what you are talking about.
    Don't own anything you have to feed or paint. - Hood River Blackie

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    • #3
      Jerry, Chuck up a 4"x1" bolt, center drill it, then chuck it by the head, slide on a piece tubing so the nut won't run up to the end of the threads, put on nut, run up tailstock and cut the nut with a parting tool. Works for me.
      To invent, you need a good imagination - and a pile of junk. Thomas A. Edison

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      • #4
        <font face="Verdana, Arial" size="2">Originally posted by G.A. Ewen:
        Jerry, Chuck up a 4"x1" bolt, center drill it, then chuck it by the head, slide on a piece tubing so the nut won't run up to the end of the threads, put on nut, run up tailstock and cut the nut with a parting tool. Works for me. </font>
        I seem to recall if the nut is split with a saw and not true it will do a better job of locking. Less likely to come loose on it's own.

        Thanks,
        Paul

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        • #5
          I found the jam nuts at McMaster-Carr, they cost about what I paid for the die to thread this arbor.

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          • #6
            Jerry
            I buy large jam nuts all the time at my local bolt house. They are grade 8 parts, but the price is not that far from regular nuts anyway.

            Also, Carr-Lane as well as other workholding manufacturers make hardened ones (pretty too).

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            • #7
              I have the nuts but need to reduce the width of them, should I try a parting tool, or just use a carbide lathe tool?

              These are the hard, and pretty gold coloured ones.

              Jerry

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              • #8
                The jaws on my 7 x 10 lathe don't extend enough to handle this size of nut, so I mall them to size or use my surface grinder or maybe my belt grinder to reduce them.

                If anyone wants to volunteer the use of their shop to do I would trade some nice stuff that I have. Like gems or arbors or whatever.

                Jerry

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                • #9
                  Jerry, did you follow what G A Ewan was suggesting above? If your chuck jaws will accomodate the 1" bolt, that oughta work.

                  How many do you have to do?
                  Lynn (Huntsville, AL)

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                  • #10
                    I would just run them through the bandsaw, one nut becomes two. Maybe have a bolt threaded a few threads in on each side to hold the nut with. Grind the sharp tits off and yer done. What am I missing?
                    I seldom do anything within the scope of logical reason and calculated cost/benefit, etc- I'm following my passion-

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                    • #11
                      Get a fairly long bolt. Cut the head off if it won't reach behind your jaws. Use one nut as a jam nut so the other nut won't spin. Face the nut to width with your carbide toolbit. You could make a simple mandrel if you wanted to, but it doesn't sound like you need to.
                      Location: North Central Texas

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                      • #12
                        I ordered a 5 inch 3 jawed chuck as recommended in the online article

                        http://www.mini-lathe.com/Mini_lathe...ck_5x3/5x3.htm

                        I got it from http://www.use-enco.com/ it's item # 270-4074 for $60.95.

                        While I got the lathe I ordered a blank faceplate for such upgrades.

                        I thought about doing the bandsaw thing and making a bolt into an arbor, but this is my excuse for getting the bigger chuck.

                        So it will be Thursday or Friday getting here if they ship from Indiana, maybe sooner. I like new toys. :-&gt;&gt;&gt;&gt;

                        Jerry


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                        • #13
                          There you go! That new chuck will pay for itself even before you get the package opened.
                          Lynn (Huntsville, AL)

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                          • #14
                            So far, I have ordered the 5 " 3 jawed chuck, the dies to cut the thread on the arbor, the die holder, and a couple of other things. So this project has many new toys and tools in it, and I spent about hundred dollars so far on it.

                            I hope the project works out, but it will be fun to learn all of the processes to do this.

                            Jerry

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                            • #15
                              I got the chuck into day, and have laid out the mounting holes on the space faceplate I have. I did the first drilling. Later I will mill them, so I have slot there to adjust things with.

                              Jerry

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