Threaded Ring Gauge Long Form Calibration Certificate No Material Tool Steel Dimension Type Metric Gauge Type Go/No-Go (Plus/Minus) Pitch Diameter - Go Member 4.45 mm Pitch Diameter - No-Go Member 4.36 mm Thread Class 6G Thread Length 4.8 mm Thread Size M5 x 0.80 Thread Type Metric Compatible Holder Size 1T Finish Uncoated Gauge Design Adjustable Hardness RC 60-62 Included Certification Certificate of Accuracy with NIST Traceability Standards ASME B1.16M Tolerance Class X