BSPT thread ring gaugeBSPT thread plug gauge

BSPT thread gauges supplier 

BSPT thread ring gauges and plug gauges

BSPT (R) thread gauges, the full name is British Standard Pipe Taper thread gauges with 55° thread angel,

BSPT also called R( external thread), Rc( internal thread), having 1:16 taper thread.

Both ring hand (RH), left hand (LH) available

BSPT threads are general-purpose sealing pipe threads, it need to add sealing material when using BSPT thread.    BSPT threads are economic, the accuracy-machining requirements is moderate. Just the dry sealing pipe threads can be sure sealing connection without adding sealing material. There is no dry sealing pipe threads in British pipe threads series. BSPT threads have two main functions, one is mechanical-connection, the other is sealing. BSPP threads just have mechanical-connection function, so BSPT threads have higher accuracy requirements than BSPP threads.

At gaugestools, all BSPT thread gauges are manufactured according to standard: ISO 7-2, BS EN 10226-3 and BS 21.


We have as below size in stock

BSPT 1/16″-28 BSPT 1/8″-28 BSPT 1/4″-19
BSPT 3/8″-19 BSPT 1/2″-14 BSPT 3/4″-14
BSPT 1″-11  BSPT 1 1/4″-11 BSPT 1 1/2″-11
BSPT 2″-11 BSPT 2 1/2″-11 BSPT 3″-11
BSPT 4″-11 BSPT 5″-11 BSPT 6″-11

We know the reliable accuracy is essential,By continuously improving the effectiveness of our process and providing on time 100%-okey products to customers, we will strive to ensure customer satisfaction. “customer satisfaction” is our pursuit forever.

Main shipping way: by Express (DHL,UPS,FEDEX and EMS etc)


H=0.960 237P;  h=0.640 327 P;  r=0.137 278 P; P=25.4/n

Taper: 1:16

standard: ISO 7-2 ; BS 21

Accepted payment way: T/T , Paypal or Credit card.

Welcome new and old clients come to talk business with us!