UNJ Thread Gauges

UNJ Thread Gauges

UNJ Threads are used in Aeronautic Industry for Imperial system of units.

Specification:

ASME B 1.15:1995 & ANSI B 1.2 : 1983, ISO 3161-1999 & ISO 15872-2002, BS 4084-1996 & BS 919-1:2007

Manufacturing Range :

Thread Plug Gauges & Thread Ring Gauges from No.4 (0.112") - 6" Diameter & TPI 48 to 4 TPI.

Manufacturing Range

Gauge Type Diameter Range (Inch) TPI (Threads per Inch) Tolerance Class
Thread Plug Gauges. No.4 (0.112") - 6" 48, 44, 40, 36, 32, 28, 24, 20, 18, 16, 14, 13, 12, 11.5, 11, 10, 9, 8,7,6, 5, 4.5, 4 TPI not covered here can be supplied based on customer request. 3B
Thread Ring Gauges. No.4 (0.112") - 6" 48, 44, 40, 36, 32, 28, 24, 20, 18, 16, 14, 13, 12, 11.5,11,10, 9, 8,7,6, 5, 4.5, 4 TPI not covered here can be supplied based on customer request. 3A
Plain Plugs To check Minor Diameter of Internal Threads as per above Diameter range.
Plain Rings To check Major Diameter of External Threads as per above Diameter range.
Check Plug Gauges To check NEW Go & Nogo Ring Gauges as given above.
Wear Check Plug Gauges To check / calibrate USED Go & Nogo Ring Gauges as given above.
Check Ring Gauges To check NEW Go & Nogo Plug Gauges as given above.
Wear Check Ring Gauges To check / calibrate USED Go & Nogo Plug Gauges as given above.

UNJC – Unified Coarse pitch & diameter combination.
UNJF – Unified Fine pitch & diameter combination
UNJEF – Unified Extra fine pitch & Diameter combination
UNJ – Unified Constant (uniform pitch series)