WESTport ACME thread ring gages and ACME thread plug gages

ACME Thread Gaging · ISO/IEC 17025 · Made in USA

ACME Thread Gages

Plug, Set Plug, and Ring Gages for General-Purpose and Centralizing ACME Threads

ACME thread plug, set plug, and ring gages in classes 2G–4G (and centralizing classes 2C–4C), manufactured to ASME B1.5 and B47.1 and certified in our ISO environmentally controlled laboratory.

Request a Quote
ISO/IEC 17025Accredited
ISO 9001Certified Quality Management
ANSI/NCSL Z540-1Accredited Calibration Lab
Made in USASince 1989

ACME threads carry load and motion — lead screws, presses, valves, and clamps — so their gaging demands a tight, well-defined fit. WESTport builds ACME thread gages for both general-purpose and centralizing forms, in every standard class of fit.

  • ACME Thread Plug Gages check internally threaded parts; classes of fit 2G, 3G, 4G, and centralizing 2C, 3C, 4C. Compliant with ASME B1.5 and B47.1.
  • ACME Thread Set Plug Gages calibrate and set adjustable ACME ring gages, in the same classes of fit.
  • ACME Thread Ring Gages inspect externally threaded parts to the mating class of fit.

Every gage is finished by hand and certified in our ISO/IEC 17025 accredited laboratory with NIST-traceable documentation.