Fixed-limit GO/NO GO thread plug gages for internal medical threads — bone-screw holes, implant fastener threads, and the complex conical thread forms used in orthopedic and prosthetic devices. The medical field has some of the most demanding thread profiles in manufacturing, and WESTport is among the country's foremost medical thread gage makers.

Standard or complex conical forms

Whether you need a standard thread form or a highly complex conical medical thread, we build the gage to your exact specification.

Certification & quality

• Precision ground, hand lapped and polished for accuracy, optimum finish, and maximum wear life
• Certificate of Accuracy, NIST-traceable — included with every gage
• Certified to ISO/IEC 17025 (A2LA-accredited); Long Form Certification available on a 5–7 business day turnaround

Request a quote. For external threads see the Conical Medical Thread Ring Gage; for variable data, the Variable Thread Inspection System.