The Asimeto Ring Thread Gauge (Go/NoGo), Imperial, Right-Hand, 1/4 x 18, is a precision external thread inspection tool built for machinists and quality-control teams. It delivers fast, reliable pass/fail verification of thread depth and tolerance in line with ASMEB1.20.1-2013 standards.

• Go/NoGo Design: Clear pass/fail checks for external threads, enabling quick decisions on part eligibility.
• 3-Step L3 Configuration: A three-step contact profile that targets the critical thread engagement zones for accurate depth and tolerance verification.
• Imperial Right-Hand 1/4 x 18 Size: Precisely matches imperial thread specifications — 1/4" major diameter with 18 threads per inch, right-hand orientation.
• ASMEB1.20.1-2013 Compliant: Manufactured to the standard’s exact dimensions and tolerances to support consistent QA processes.
• External Thread Inspection Tool: Specifically designed to assess external threads on fasteners and machined components, reducing guesswork in assembly fits.

Using this gauge helps you catch under- or over-tolerance threads early in production, minimize rework, and ensure reliable mating with fasteners and threaded parts. It’s ideal for in-process checks on lathes, mills, and thread-cutting operations, as well as incoming inspection when parts arrive from suppliers. With its precise geometry and straightforward Go/NoGo feedback, you’ll achieve repeatable measurements across operators and shifts.