BSPT thread gauges also know as Rc taper thread gauges / Pipe taper / KR taper or Conical taper thread gauges are used for interconnecting and sealing pipe ends by mating an external (male) with an internal (female) thread.

We provide these Rc taper thread gauges at reasonable prices and in specifications to the consumer needs. Our thread gauges can be availed in both regular and tailor made solutions to meet the specific requirements of our clients.

The majority of our taper thread gauges are available to buy in a short lead time from our warehouses. Please contact us, to arrange these gauges for you.

Standards: Basic Dimensions: BS 21:1985, IS:8999-1979
Class of Fit: System for both screw Rings and Screw Plugs.

Nominal Diameter TPI Thread Plug Plug 'RC' Rs Stock Thread Rings Rings R Rs Stock
1/16" 28 3120 -
1/8" 28 3050 6460
1/4" 19 2520 5290
3/8" 19 2320 5160
1/2" 14 2320 4300
3/4" 14 2320 4300
1" 11 2850 6490
1.1/4" 11 2850 6510
1.1/2" 11 2850 6510
2" 11 2850 6510
2.1/2" 11 4230 7935
3" 11 4230 7935
4" 11 6150 11370
5" 11 7670 -
6" 11 7810 6490