BUTTRESS THREAD GAUGES

BUTTRESS THREADS are used in the construction of artillery with the screw type breech b

Specification

American Specifications:	ANSI/ ASME B1.9- 1973 for 70/450 thread Profile.
B.S Specifications:	B.S 1657 – 1950 used for 70/450 and 0/520 thread profile.

Manufacturing range:

• Thread Plugs , Thread Rings, Check Plugs & Wear Check Plugs of Diameter from 1/2″ to 8″ and TPI from 20 to 3.