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Steel dowels or other

  • 05-02-2016 12:41pm
    #1
    rampantbunny
    Registered Users, Registered Users 2 Posts: 907 ✭✭✭


    I'm looking for small steel dowels of a particular type.
    I basically want the dowel to protrude from a 4mm strap of metal without falling through the hole drilled for it. The dowel cannot protrude underneath (much) as it will interfere with another strap that crosses under it. The dowel will act as a pin to stop an object opening back too much.

    In order of preference, I'm considering:
    1. dowel with step up from 4mm to 5mm in middle
    2. dowel that flares in the middle to a larger diameter
    3. split pin
    4. tapered dowel
    5. tap/thread/bolt

    A tapered dowel wouldn't really be suitable as I wouldn't be able to accurately control the distance the dowel would protrude under the strap it will be inserted into and don't have access after insertion to trim it back.
    Neither can I tap the strap due to restricted access so that is out also.

    Anyone know where I can get option 1 or 2. Will get some and try them out.


Comments

  • #2
    jmrc
    Registered Users, Registered Users 2 Posts: 209 ✭✭jmrc


    roll split pin. or tap it an put a bolt in it.

    depends on the thickness of the strap you want to put the "dowel" into...
    4mm rod....Welding rod is 3.8 or 4.2mm.... knock the "slag" off it or a stainlees tig rod might work.

    you could tig or silver solder (braze) it into place....

    loads of options.....depends on whats to hand...


  • #3
    jmrc
    Registered Users, Registered Users 2 Posts: 209 ✭✭jmrc


    roll split pin. or tap it an put a bolt in it.

    depends on the thickness of the strap you want to put the "dowel" into...
    4mm rod....Welding rod is 3.8 or 4.2mm.... knock the "slag" off it or a stainlees tig rod might work.

    you could tig or silver solder (braze) it into place....

    loads of options.....depends on whats to hand...


  • #4
    rampantbunny
    Registered Users, Registered Users 2 Posts: 907 ✭✭✭rampantbunny


    jmrc wrote: »
    roll split pin. or tap it an put a bolt in it.

    depends on the thickness of the strap you want to put the "dowel" into...
    4mm rod....Welding rod is 3.8 or 4.2mm.... knock the "slag" off it or a stainlees tig rod might work.

    you could tig or silver solder (braze) it into place....

    loads of options.....depends on whats to hand...

    Thanks jmrc.

    Strap is 4mm and in a tight space. Can just about get drill in vertically to drill out a hole for the pin/dowel.
    I need to keep this DIY meaning welding/brazing is out for me plus proximity to expensive products so don't want to risk damage.

    Wouldn't the metal in a welding rod be pretty soft?


  • #5
    CJhaughey
    Registered Users, Registered Users 2 Posts: 14,907 ✭✭✭✭CJhaughey


    Roll pin 4mm, once in place it won't come out very easily.
    linky


  • #6
    rampantbunny
    Registered Users, Registered Users 2 Posts: 907 ✭✭✭rampantbunny


    CJhaughey wrote: »
    Roll pin 4mm, once in place it won't come out very easily.
    linky

    I've roll pins on my list (I called them split pins in my first post because I thought that was what they were called). Have actually ordered some...but wondering how are they inserted into the hole. Do they have to be tapped in with a hammer or do you compress them (with pliers) and shove them in?


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  • #7
    CJhaughey
    Registered Users, Registered Users 2 Posts: 14,907 ✭✭✭✭CJhaughey


    Usually you tap them in, they would probably need something like a thin socket or a piece of pipe behind the strap to support it as they are fairly hard to beat in. Thats why they don't move once in place.


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