Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Very Odd thread designation

  1. Sep 25, 2009 #1
    Afternoon everyone,

    I am slightly confused........

    Basically, i will be purchasing a force transducer from a company called HBM.

    Now, on their data sheet it shows that there are two tapped holes either end of the transducer, designated by G and G1.

    I am using a 125kN transducer, and for G and G1 it gives the following (also see attached screen shot and zoom into the bottom table):

    G:M33x2−4H 35.6 deep.

    G1:M33x2−4H 35.6 deep.

    Now i understand what each number and letter is supposed to denote, but the pitch value of 2mm seems so small. If you notice on the table, all thread pitches are 2mm - even for the M16 to M72 threads that are listed in the table?

    Obviously for a course pitch the the pitch for an M33 is 3.5mm, but the fine pitch series doesn't mention anything?

    I don't want to purchase the load cell if it will be an impossiible task to get the thread on the attachments - that will screw into the M33 holes.

    I also know that the HBM are originally a German company, so maybe they use an odd designation.

    I have contacted the UK tech support team and they don't know.

    Can anyone please help me?

    Have a great weekend,

    mech King


    Genrally we tend to use ISO Metric Course threas in my industry
     

    Attached Files:

    Last edited: Sep 25, 2009
  2. jcsd
  3. Sep 25, 2009 #2

    FredGarvin

    User Avatar
    Science Advisor

    Machinery's lists all of those as being part of the M profile as per ASME B1.13M. I can't say that I am familiar with them because I don't use metric threads very often. I don't even have the spec on hand to look at.
     
  4. Sep 25, 2009 #3
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Very Odd thread designation
  1. Odd number of pistons? (Replies: 13)

Loading...