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Thread: Locking screws that prevent damage to shafts.

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    thehomeengineer's Tools

    Locking screws that prevent damage to shafts.

    Hi All

    I hate grub screws or bolts as a clamping method on shafts where adjustments are constantly needed to be made, and I am always hunting for the Allan key or spanner. Another issue is the damage they can do to the shaft. Yes, you can machine a flat along the length of the shaft or place a slug of soft material between the shaft and clamp screw but you still need to find that Allen key or spanner

    Anyway rant over!

    To over come this I always (when ever possible) fit knobs or handled levers. This overcomes the Allen key and spanner issue.

    The Knobs and levers I purchase are female thread so I can make my own length threads. I have a stock of metric threads from 5mm to 12mm with various diameter handle sizes. These are cheap so buy in bags of 10. The lever type are more expensive so I tend to buy these as I need them.

    To over come the damage caused to the shaft I simply drill a hole in the end of the stud and loctite a brass insert. This then prevents damage to the shaft and the need to machine a flat along the shaft.

    Hopefully the photos below will make it clear.

    Locking screws that prevent damage to shafts.-9f410edd-7d73-467f-807b-d5abe2fcff03.jpeg Components and materials to make locking handles

    Locking screws that prevent damage to shafts.-9ecd307f-c544-4184-b745-9dab782c871a.jpeg Stud made from M6 bolt and drilled to accept brass.

    Locking screws that prevent damage to shafts.-29d74c17-d408-4071-9403-de1dfada6a24.jpeg Both the stud and brass loctite in position.

    Locking screws that prevent damage to shafts.-adc1d1d8-45e1-4915-bbb2-8beaa2c96825.jpeg Locking screws that prevent damage to shafts.-6e23672c-b6da-4bb7-85d9-20e3691745db.jpeg Brass slug then cut to length

    Locking screws that prevent damage to shafts.-f1a8f5c5-a040-4ab2-b614-1c75ab5745ac.jpeg Lever and knob ready to use.

    Locking screws that prevent damage to shafts.-358137c4-859f-4225-8c92-1b764f390d3a.jpeg Knob used on stop for 4x6 bandsaw

    Not only are these practical I also think these give a nice finish to any job.

    Thank you for viewing.
    The Home Engineer

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    Thanks thehomeengineer! We've added your Brass Tip Locking Knobs to our Fastening category,
    as well as to your builder page: thehomeengineer's Homemade Tools. Your receipt:




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