Metric Thread Ring Gauges – Go/No-Go External Thread Inspection Tools (M0.8-M33) | Compliant Precision Thread Gauges

Key Features

• Go/No-Go Dual Function: Verify external thread accuracy (e.g., bolts, screws) with "Go" (acceptance) and "No-Go" (rejection) ends in a single gauge for fast quality control.

• High-Wear Resistance: Forged from hardened tungsten carbide (HRC 65) for durability in high-volume manufacturing or automotive/aerospace inspections.

• Full Metric Range: Covers M0.8 to M33 (coarse and fine threads available).

• Mirror-Finished Surface: Precision-lapped internal threads (≤Ra 0.1μm) minimize friction and prevent false readings.

Product Description

The Metric Thread Ring Gauges set is engineered for precision inspection of external threads in fasteners, shafts, and machined components. 

Crafted from ultra-hard tungsten carbide, these gauges withstand thousands of inspections without wear, even on hardened steel or stainless steel threads.

Why Choose These Gauges?

• Time-Saving Design: Dual-ended Go/No-Go eliminates tool switching during inspections.

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Specifications

• Thread Sizes: M0.8–M33 (standard coarse pitch) | Fine pitch (e.g., M12×1.25) optional

• Tolerance Class: 6g

• Material: Steel

• Weight: 60g (M0.8×0.2) to 485g (M18×2.5)