Designed for precision-focused shops and quality control teams, the Asimeto 686 Series Ring Thread Gauge (NoGo) provides reliable verification of metric thread pitch diameter for M50 x 3 right-hand threads. It enforces the 6g tolerance class to help ensure fasteners meet exact size requirements for strong, dependable assemblies.

• Gauging Class: 6g tolerance class for metric threads, ensuring accurate pitch diameter validation.
• NOGO Designation: Quick pass/fail indication—if a fastener cannot pass through, its pitch diameter exceeds the maximum allowable limit.
• Thread Size: Metric M50 x 3 right-hand threading profile used for precise sizing and compatibility checks.
• Right-Hand Gauge: Specifically configured for right-hand threaded fasteners to match common industrial standards.
• Series and Craftsmanship: Part of the 686 Series, precision‑machined from high‑quality materials for durable, long‑lasting use.
• Construction Details: Precision-ground surfaces designed to deliver consistent measurements and smooth insertion during inspection.
• Intended Use: Ideal for quality control labs, machine shops, and production lines needing reliable go/no-go checks on threaded components.

Using this NoGo ring gauge helps you confirm that your fasteners stay within spec before they enter an assembly, reducing misfits, rework, and downtime. The instrument provides clear, immediate indications of oversized or out‑of‑tolerance threads, supporting safer, more reliable connections across production runs. Built for daily workshop use, the 686 Series gauge maintains accuracy over time, making it a trusted tool in precision threading projects.