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Metric Thread Measuring Wire Sets

$42.00

Description

  • 48 pieces 16 different sizes for all 60 threads.
  • Measures all threads from 3 to 48 threads per inch and all metric from 0.5mm to 6mm pitch.
  • 3 wire method of measuring external threads.
  • Wires are fitted in a plastic case stamped with sizes.
  • Laminated chart complied from the U.S. Standard Handbook H.28 gives proper sizes & measurements over wires.

Technical Details:

Metric Thread Measuring Wire Sets

  • Thread Measuring Wires and a micrometer are used to quickly and accurately measure pitch diameters of external threads
  • Comes with 4 thread measuring wire holders

 

EG06-1002-3-WIRE-METHOD-SCHEMA

3-wire-method of checking pitch diameter of screw threads

Metric Thread Measuring Wire Sets

 

  • M: measurement over wires
  • E: pitch diameter of thread
  • D: basic major or outside diameter
  • W: wire diameter
  • P: thread pitch
  • M = E +Const
  • E = M – Const
  • Const.= 3W-86603p (found in chart)

 

The maximum and minimum pitch diameter(E) for each class of thread can be found in machinery hand book

CONVERSION CHART FOR 60° METRIC THREADS

chart

THREAD CHART FOR ALL U.S. 60° THREADS

Select the proper wire size for either the number of threads per inch (US) or thread pitch (Metric)Metric Measured pitch die (E) equals measurement over wires(M) minus decimal in “CONST” column Note: Basic P.D. equals basic major diameter plus decimal in “ADD” column minus decimal in “CONST” column