Parallel threads: also called straight threads. These threads have a constant diameter, 

BSPP ( British Standard Pipe Parallel) taps produce a straight whitworth (55 degree) thread in standard sizes from 1/16 to 6 somewhat related to the inside diameter of pipe. What do these icons mean? Product Options & Sizes Distributors Order Online Test This Tool

Although BSP is a foreign thread, it isn't actually metric. This is why it comes in imperial sizes: 1/8, 1/4, 1/2, 3/4, and so on. BSP parallel threads commonly seal via a 30° chamfer on the male thread to a 30° recessed. When the diameter smaller than 1/4", the value is indicated by a number, like #1 or No.1. 2.Thread sizes in metric are

Metric Thread -- Extended Thread Size Range (online only) MARYLAND METRICS -- THREAD DATA CHART: Metric Thread -- Fine Pitch Nominal Size ISO MF Thread Form Type Major Diameter mm d=D Pitch mm p Root Radius mm r Pitch Diameter mm d2=D2 Minor Diameter Male Thd. d3 Minor Diameter Thd. D1 Thread Height Male Thd. h3 Thread Height Thd

BSPP Thread Chart Dimensions: ; Height of Sharp V Thread, H ; Major Diameter of Thread, D (= d) ; Pitch Diameter of Thread, D2 (= d2) ; Minor Diameter of Thread, D1 

27 rows · External thread th. Designation of thread. Number of threads in 25.4 mm. Pitch P. Height of thread h. major d = D. pitch d2 = D2. minor d1 = D1. Lower deviation.

British Standard Pipe (BSP) is a set of technical standards for screw threads that has been adopted internationally for interconnecting and sealing pipes and fittings by mating an external

Tolerance on major diameter. Internal thread th2. External thread th2. Internal thread th1. External thread th. Designation of thread. Number of threads in 25.4 mm. Pitch P. Height of thread h.

Nominal Size BSPT Thread Form Type Major Diameter mm d=D Pitch mm p Threads per inch tpi Pitch Diameter mm d2=D2 Minor Diameter Male Thd. d3=D3 Thread Height H1 BSW BSF BSPP BSPF BSPT NPT . Unified Threads 6UN 8UN 12UN 16UN 20UN 28UN 32UN UNC 8UNJ 12UNJ 16UNJ UNF UNEF UNS UNJC UNJF UNJEF. ACME Threads METRIC UNIFIED STUB.

27/08/  · If pipe threads were proprietary information like the Microsoft products, they would most likely sell for $100 per threaded connection. ISO 228-1:2000 is the Code for parallel threads if that is what you are after, not standard BS 5200:1997. BS 5200:1997 is a specification for dimensions of hydraulic connectors and adaptors.

These threads come in two versions: parallel (BSPP), and tapered (BSPT). The thread 1) Measure the O.D (outer diameter) of the BSP thread.