Thread gauges are used to inspect the screw threads of components and to ensure that they are within the permissible limits. Different gauges are available for different thread profiles like metric, unified, NPT, NPTF, Stub Acme, buttress, BSW, BSF, BA, BSP, BSCY etc. A thread ring gauge is used for checking the diameter and the pitch of threaded shafts whereas a plug gauge is used for the inspection of threaded bores. Manufactured from high quality bearing steel duly hardened and ground to 58-60 HRC providing tight tolerance and accurate measurements across various thread profiles.
ACME: ANSI/ASME B1.5-1997
BA: BS 93-1951
BSCY: BS 811-1950
BSPP: IS:2643-2005
BSW/BSF: BS 84-2007
Buttress: BS 1657-1950
Metric: DIN 13-1999
NPT: ANSI/ASME B1.20.1-1983
Trapezoidal: ISO 7008-1988
Unified: BS 1580
