Master Metrology

Thread Gauges

Thread gauges are precision tools used to measure and verify the pitch or diameter of threaded components. They are essential in industries like automotive, aerospace, and manufacturing to ensure accurate and standardized threads.

Thread gauges are precision tools used to measure and verify the pitch or diameter of threaded components. They are essential in industries like automotive, aerospace, and manufacturing to ensure accurate and standardized threads.

Master Metrology

ISO Metric Thread Gauges

Basic Dimensions & Standards: IS 4218 Part II - 1976, IS 4229 Part I - 1976, IS 7872-1975, IS 14962-1 (ISO 1502 - 1996)
Gauging Practice: IS 2334 - 1976, ISO 1502 - 1996
Range: 1 mm to 400 mm

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Unified Thread Gauges

Basic Dimensions: BS 1580-1962
Gauging Practice: BS 919 Part VI/1960, ANSI B1.2 - 1983
Range: No. 0 to 6 inch
Class of Fit: Plug: 2A (Medium), Ring: 2B (Medium)

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B.S.P Thread Gauges (G-Series)

Basic Dimensions: BS 2779 – 1966, BS 3643-1975, ISO 228 Pt 1-1982
Gauging Practice: BS 919 Pt.1 1971, ISO 7-1:1976, 1982, ISO 228 Pt.II - 1987
Range: 1/16” to 12”

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British Standard Whitworth Form Thread Gauges

Basic Dimensions: BS 84:1956
Gauging Practice: BS 919, Part I, 1971
Range: 1/16” to 12”

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B.A Thread Gauges

Basic Dimensions: BS 93:1951
Gauging Practice: BS 919, Part I, 1971
Range: 0 to 10 BA

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B.S Cycle Thread Gauges

Basic Dimensions: BS 811:1950
Gauging Practice: BS 919 Part 2:1971
Range: 7/32” to 1/2”

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N.P.T Taper Thread Gauges

Basic Dimensions: ANSI B 1.20.1
Gauging Practice: ASME B 1.20.1
Range: 1/16” to 6”

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N.P.T.F Thread Gauges

Basic Dimensions: ANSI B 1.20.3
Gauging Practice: ANSI B 1.20.5
Range: 1/16” to 6”

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B.S.P.T Taper Thread Gauges

Basic Dimensions: BS 21 - 1985
Gauging Practice: BS 21 - 1985
Range: 1/16” to 6”

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N.G.T Taper Thread Gauges

Basic Dimensions: ANSI B 1.20.5
Gauging Practice: ANSI B 1.20.5
Range: 1/8” to 2”

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Trapezoidal Thread Gauges

Basic Dimensions: IS 7008 / ISO 2901 - 2904
Gauging Practice: As per customer specification
Range: As required

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Acme Threads

Basic Dimensions: ASME B 1.5
Gauging Practice: As per customer specification
Range: As required

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Stub Acme Thread

Basic Dimensions: ANSI/ASME B 1.8
Gauging Practice: As per customer specification
Range: As required

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Metric Buttress Thread 3° - 30°

Basic Dimensions: DIN 513
Gauging Practice: As per customer specification
Range: As required

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ANSI Buttress Thread

Basic Dimensions: ANSI B1.9
Gauging Practice: As per customer specification
Range: As required