Unified Thread Gauges are precision measuring tools used to check the accuracy of UN, UNC, UNF, UNEF, and UNS thread forms based on the Unified Thread Standard (UTS). These gauges ensure dimensional accuracy and interchangeability of threaded components used in American and international mechanical assemblies.
Key Features:
Manufactured as per ANSI/ASME B1.1 and BS 1580 standards
Available in Thread Plug, Thread Ring, and Thread Snap Gauge types
Offered in GO and NO-GO combinations for complete thread inspection
Thread series include UNC (Coarse), UNF (Fine), UNEF (Extra Fine), and UNS (Special)
Made from high-quality, stabilized tool steel with hardened and ground profiles
Provided with NABL traceable calibration certificates
Available in Class 2A/2B and Class 3A/3B tolerance grades
Technical Specifications:
Size range: 1/4” to 6” (custom options available)
Accuracy: ±0.002 mm
Hardness: 58–62 HRC
Surface finish: Precision lapped for consistent readings
Applications:
Ideal for aerospace, defense, automotive, and heavy engineering industries
Used in production lines, tool rooms, and quality inspection departments
Benefits:Guarantees thread compatibility, reduces rework and rejection, supports international manufacturing standards, and ensures reliable, repeatable measurements for critical threaded components.