Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: Carbide insert securing screws

  1. #1
    Join Date
    May 2015
    Location
    Somerset UK
    Posts
    1,972

    Default Carbide insert securing screws

    I recently bought a Stellram lathe tool on ebay which is in good condition, but could do with a new insert securing screw. It uses a DCMT 11 insert and is an SDJCR 2020K11. This code is definitely metric, but the screw appears to have a finer thread pitch than standard. Stellram is part of Kennametal and looking up the equivalent tool which also incorporates a shim, gives a screw with a T15 socket and a part number of MS 1156. No information on the thread is given.
    I will have to wait until Saturday to check the screw properly, as my thread gauges are at the museum. I would guess at 3.5mm, maybe metric fine.
    Any info would be appreciated.

  2. #2
    Join Date
    Nov 2007
    Location
    Woodinville, WA
    Posts
    9,273

  3. #3
    Join Date
    Jul 2006
    Location
    Germany
    Posts
    166

    Default

    I'd recommend that you buy original screws, steel is very high grade.

  4. #4
    Join Date
    Jan 2003
    Location
    On the Oil Coast,USA
    Posts
    19,276

    Default

    Quote Originally Posted by lakeside53 View Post
    x's2, I've bought hardware from this vendor,really good stuff and fair prices.I bought a pack of spares for every size I have in the shop just incase.They have come in handy several times already.
    I just need one more tool,just one!

  5. #5
    Join Date
    Aug 2016
    Location
    Appalachian Ohio
    Posts
    693

    Default

    Quote Originally Posted by old mart View Post
    I will have to wait until Saturday to check the screw properly, as my thread gauges are at the museum.
    WOW... while some of my tools probably belong in a museum I've never kept them there.

  6. #6
    Join Date
    Aug 2004
    Location
    Sunny So Cal
    Posts
    4,625

    Default

    Quote Originally Posted by lakeside53 View Post
    Nice piece of info. I only buy used holders and with the screw and or buffer plates.

    I have never tried to measure such a fine thread. I cant measure the threads of a tiny shaft in an even smaller watch. Hard to measure that pitch.

    Measuring fine pitches would be a class I would take, JR
    My old yahoo group. Bridgeport Mill Group

    https://groups.yahoo.com/neo/groups/...port_mill/info

  7. #7
    Join Date
    Nov 2007
    Location
    Woodinville, WA
    Posts
    9,273

    Default

    I also have bought many packets of tool holder screws from this seller. Good guy.

  8. #8
    Join Date
    Apr 2001
    Location
    Central Ohio
    Posts
    1,072

    Default

    I have also made that once, trouble was that was not what it was supposed to look like.
    mark costello-Low speed steel

  9. #9
    Join Date
    Mar 2015
    Posts
    2,796

    Default

    Quote Originally Posted by JRouche View Post
    Nice piece of info. I only buy used holders and with the screw and or buffer plates.

    I have never tried to measure such a fine thread. I cant measure the threads of a tiny shaft in an even smaller watch. Hard to measure that pitch.

    Measuring fine pitches would be a class I would take, JR
    Optical comparator?

  10. #10
    Join Date
    Dec 2016
    Location
    Helsinki, Finland, Europe
    Posts
    2,909

    Default

    External threads are easy enough to measure if you have the correct pitch gauge and the thread is enough long but internal threads are lot more tricky.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •