The Asimeto Plug Thread Gauge (D/E) from the 690 Series is a precision internal-thread gauge designed for BSP and BSPP fittings. Right-hand, 6H class, 1/8 x 28 size—built for engineers and quality teams who need reliable thread verification before assembly.

• Series: 690 Series precision internal-thread gauge for BSP/BSPP fittings
• Thread size: 1/8 x 28 BSP (G) thread matches the tested component
• Tolerance class: 6H to ensure a consistent, accurate fit
• Handedness: Right-hand thread orientation for standard applications
• Material and durability: Hardened steel construction with wear-resistant finish for repeated use
• Compatibility: Designed to check BSP and BSPP internal threads in pipe, hydraulic, and pneumatic components

This gauge provides a reliable go-check to confirm that internal threads will accept mating components without trial-and-error fitting. By validating the exact thread size and tolerance, it helps reduce misthreads and the risk of leaks, speeds quality-control inspections, and supports consistent performance across production and maintenance environments. Built to endure daily use, it’s a practical addition to any workshop, QC lab, or field service kit working with BSP/BSPP fittings.