27 rows · British Standard Pipe BSP thread chart, BSP thread chart showing TPI and drill sizes.

BSP Thread Size Outside Diameter mm / inch TPI 1/16 Inch BSP 7.7 mm / 0.304" 28 1/8 Inch BSP 9.7 mm / 0.383" 28 1/4 Inch BSP 13.16 mm / 0.518" 19

Size Nominal Size (in) Actual Major Thread Diameter in inches 2 1/8 0.383 4 1/4 0.518 6 3/8 0.656 8 1/2 0.825

External Pipe Threads per. ISO 228-1, Pipe threads where pressure-tight joints are not made by the threads. These pipe threads are also known as Whitworth pipe threads. Where: D = Major Dia.internal thread D 1 = Minor Dia.internal thread D 2 = Pitch diameter internal thread d = Major Dia.external thread d 1 = Minor Dia.external thread

systems. The BSP thread is offered in a straight (parallel) form known as BSPP and a tapered form known as BSPT. These threads feature a 55° flank angle. Fittings in this section with male BSPP threads use a primary sealing method of an O-ring and retaining ring, as shown in Fig. G5. Fig. G5 — O-Ring with Retaining Ring

of BSPP adapters, most all males in series “B” can be used for as a Port Connection with the addition of a bonded seal. Measurement Procedure 1. With calipers, measure the O.D. (outer diameter) of the Male threads or the I.D. (inner diameter) of the threads. 2. Check the thread pitch with the thread pitch gauges. 3.

SIZE TPI MAJOR (EXT) MINOR (INT) TAP DRILL 1/8" 28 9.728 8.566 8.70 1/4" 19 13.157 11.445 11.60 3/8" 19 16.662 14.950 15.00

25/07/  · BSPT & BSPP are NOT metric threads. British thread forms have a 55 degree flank angle and use sizes similar to our own pipe threads - 1/8, 1/4, 3/8, 1/2, etc. General practice is to use measuring wires of "best size," i.e., a wire that contacts at the pitch line. From the Machinery Handbook: Best wire size=0.5 pitch/cosA, where A = 1/2 included

Dimensions and pressures for reference only, subject to change. *Class 2A or 2B Table G1 — Thread Conformance Standards The BSP thread is offered in a straight (parallel) form known as BSPP and a tapered form known as BSPT. These threads feature a 55° flank angle. Fittings in this section with

BSPT & BSPP thread dimensions. Search for: Archives. © 2022 Bearings & Industrial Supplies Pty Ltd • Powered by GeneratePress.

British Standard Pipe fittings are among the most popular of all foreign threads in the world today. These threads come in two versions: parallel (BSPP),