Thread Gauges

We are one of the pioneers in thread gauges and manufacture a wide variety of thread gauges suitable for various popularly used thread forms like Metric (60°), Unified (60°), Whitworth (55°), BA (47.5°), BS cycle (60°) , ACME (29°), trapezoidal(30°), Standard Buttress (7°/45°), NPT/NPTF (60°), BSP, BSPT (55°)

We manufacture plug gauges and ring gauges at our Ahmednagar plant in a wide range of sizes from 2 mm to 400 mm as per various popular manufacturing standards like ISO, API, BS and IS. All the products are subjected to stringent quality checks in our well-equipped labs certified by NABL

Description Range Standards
ISO metric screw plugs (6H) and screw rings Go or No Go (6G) 2 mm to 500 mm
2 mm - 400 mm
Basic dimensions to ISO 724 (1993) ; IS 4218 Part III(1999); IS 4218 V (2001) Gauging practice to ISO 1502(1996); ISO 965-I (1998); IS 2334-2001
Unified Plug screw gauges – 2B and Unified screw rings to 2A No 6 – 14
No 6 to 20-inch
Basic dimensions to ANSI/ASME B 1.2 (1983) or BS 1580 (1962) Gauging practice to ANSI/ASME B 1.2 (1983) or BS 919 (1960)
British standard Whitworth (BSW/BSF) screw gauges 1/8” – 2” Basic dimensions to BS 84 (1956) Gauging practice to BS 919 part II (1971) Class of fit - Medium
I.S. taper thread gauges (BSPT) 1/16” – 10” Basic dimensions to IS 554 Gauging practice to IS 8999 (1979) or BS 21 (1973) Alternatively Basic dimensions to ISO 7/1 (1994) or IS 554 (1999) Gauging practice to ISO 7/2 (2000) or IS 8999 (2003)
B.A. screw gauges 0 BA – 6 BA Basic dimensions to BS 93 (1951) Gauging practice to BS 919 part I (1971) Class of fit Normal
N.P.T screw gauges 1/16” – 10” Basic dimensions and gauging practice to ANSI/ASME B1.20.01 (1983) or H28 part II (1957)
N.P.T.F. screw gauges 1/16” – 10 ” Basic dimensions and gauging practice to ANSI B 1.20.5 (1991) or H28 part II (1957)
¾ N.G.T. screw gauges ¾”and above Basic dimensions and gauging practice to IS 9121 (2005)
B.S. cycle screw gauges 7/32” – 1.3/4” Basic dimensions to BS 811 (1950) Gauging practice to IS 919 part II (1971)
BSP SCREW GAUGES   1/8 INCH TTO 12 INCH Basic DIMENSIONS TO 1SO10216 –1998 GAUGING PRACTISE TO 1SO22 8 PART II --1987