Thread Ring Gauges are precision inspection tools used to check the accuracy of external threads on screws, bolts, and studs. At Precision Gauges & Tools, each ring gauge is manufactured to the highest metrological standards, ensuring consistent and repeatable measurement accuracy. Our thread ring gauges help industries achieve uniformity and interchangeability in threaded components—making them indispensable for mass production and quality assurance setups.

Technical Excellence:Manufactured from high-quality, wear-resistant tool steel, each ring gauge is hardened, stabilized, and precision-lapped to achieve dimensional stability even under repetitive usage. We follow international standards such as ISO 1502, BS 919, ANSI B1.2, and DIN 13, depending on customer requirements.

Types Available:

• Metric Thread Ring Gauges (Coarse & Fine pitch)

• Unified Thread Ring Gauges (UNC, UNF, UNEF)

• BSP & BSPT Thread Ring Gauges

• NPT / NPTF Taper Thread Ring Gauges

• ACME and Trapezoidal Thread Ring Gauges

• Left-hand Thread Ring Gauges

Features:

• Precision-ground and lapped for uniform thread form

• GO and NO-GO pairs supplied with color-coded markings

• Individual serial numbers and traceable calibration certificates

• Option for tungsten carbide coating for extra durability

• Available in custom sizes up to 300 mm diameter

Applications:Thread ring gauges are extensively used in automotive, aerospace, defense, machine tool, and fastener industries where thread integrity defines product reliability.