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Threaded Inserts for Bolt-On necks

Discussion in 'Luthier's Corner' started by ble_rush, Apr 14, 2006.


  1. ble_rush

    ble_rush

    Jun 13, 2001
    Mty, México
    I have plans for a 5 string bass guitar with a warmoth neck (on order), and I have been thinking about using threaded inserts for this neck, so if I want to change the body or try the neck in another body won't be damaging the neck.

    I was looking at this website:
    http://www.ezlok.com/index2.htm

    There are "Knife Thread", "Hexdrive", "Finserts", that appear to differ in the way they can be installed

    Have someone here used any of these inserts?
    If so, what kind would be better for a bolt-on neck?
    what measures/size will be appropriate?

    If you have used another kind of thread inserts that can be bought online, please let me know.

    Any help will be very appreciated.
    Thanks in advance
     
  2. mcdade

    mcdade

    Sep 27, 2004
    London (UK)
    Ive used thread inserts in my last bolt on 4 string and they are great.I put 6 inserts into the heel of the neck and used countersunk machine 6mm bolts.

    woodinserts.
     
  3. Linas

    Linas

    Jan 6, 2005
    Chicago
    I just PMed hambone and said hes got a bunch for sale. He knows what hes doing and i would trust the inserts he chose to sell. Shoot him a pm.
     
  4. ble_rush

    ble_rush

    Jun 13, 2001
    Mty, México
    Thanks, I PMed Hambone about this. I'll wait for his response.

    Does someone else have a comment or link to share on this matter?

    Thanks in advance.
     
  5. Marcus Willett

    Marcus Willett Supporting Member

    Feb 8, 2005
    Palm Bay, FL
    Endorsing Artist: Bag End - Dean Markley - Thunderfunk

    I just got a set from Moses Graphite. Around $5.
     
  6. JSPguitars

    JSPguitars

    Jan 12, 2004
    Grass Valley
    I miss Hambone around here! :bawl:
     
  7. Greenman

    Greenman

    Dec 17, 2005
    Ontario Canada
    +1
     
  8. Frank Martin

    Frank Martin Bitten by the luthiery bug...

    Oct 8, 2001
    Budapest, Hungary, EU
    +2! :meh:

    (Why did he leave anyway? I seem to have missed that... I just remember when he was here, and gave us a lot of useful advice and encouragement, then some time later he's not here, and even some of his posts disappered...)
     
  9. JSPguitars

    JSPguitars

    Jan 12, 2004
    Grass Valley
    I'm not totally sure where he went. I remember him saying something about his 'status' around here was gonna change, but perhaps he just put his time in here and now it's over. He was definitely helpful, and I enjoyed his sense of humor as well.
    I just hope he is doing well health-wise and everything, ....
     
  10. jburtonca

    jburtonca

    Nov 25, 2000
    Ottawa, Canada
    I used E-Z Lok inserts on my Warmoth/Moses Graphite/2-TEK/U-Retro J Bass project. Go to http://www.mcmaster.com/
    and do a search for Part Number: 95807A200. These inserts are 10-24 size; much stronger than the crappy 8-32 brass inserts that came with the Moses neck.

    Inserts.JPG


    Thread the insert onto a bolt with a washer(s) and use a hex drive bit on the drill-press to install the insert. Unplug the drill-press and turn the chuck by hand.

    Drill-press.JPG

    Jeff
     
  11. jburtonca

    jburtonca

    Nov 25, 2000
    Ottawa, Canada
    Here's a photo of the installed inserts. Due to the nature of graphite necks, I had to increase the size of the hole well above what is recommended for wooden necks.

    Moses neck.JPG

    I stained the bass myself and finished it using pre-cat lacquer in aerosol cans.

    1) Warmoth quilted maple on alder body
    2) Moses Graphite Jazz neck
    3) John East U-Retro on-board pre-amp
    4) EMG JV pickups
    5) Schaller BM Light machines

    Jazz Bass.JPG

    It plays and sounds better thn any other bass I own, including my Alembic.

    Jeff
     
  12. Linas

    Linas

    Jan 6, 2005
    Chicago
    Nice lookin bass jeff. What is the point of the washer?
     
  13. jburtonca

    jburtonca

    Nov 25, 2000
    Ottawa, Canada
    Hi Linas,

    The washer does three things. Firstly, it provides a flat, even surface for the hex driver to push against, which ensures that the insert goes in perfectly straight. Secondly, it distributes the forces on the top of the insert evenly, minimizing damage to it. And finally, it makes it easy to tell when the insert is flush with the neck.

    Jeff
     
  14. ble_rush

    ble_rush

    Jun 13, 2001
    Mty, México
    Thanks, Great info!

    About my search.... Everything points that I'll be getting inserts & bolts from Hambone :D

    Thanks again to all.
     
  15. Frank Martin

    Frank Martin Bitten by the luthiery bug...

    Oct 8, 2001
    Budapest, Hungary, EU
    :thumbsup:
    :cool:
     

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