Metric pipe thread chart pdf. Pipe pipe thread dimensions nominal pipe sizes do not match any of its actual physical dimensions. Nptnptf thread type chart bsp thread type chart pt thread type chart sae thread type chart metric thread type chart thread seal tape and alternative solutions. If lh is added the pipe has a left hand thread. 1 for metric threads pitch is the distance between threads.
Wall thickness of pipes available in different standard schedules sch for nps nominal pipe size in inch as well as dn diameter nominal in mm are shown in below chart. Thread data charts metric thread extended thread size range iso thread height male thread h3 thread height female thread h1 sorted by thread class click here to return to the thread data chart page index. The size number was originally based on the inner diameter measured in inches 254 mm of a steel tube for which the thread was intended but is in the modern metric version of the standard simply a size number. Metric bolts proof loads.
Metric threads fine thread pitches. Metric inch m10 1 m12 125 m14 125 m18 15 popular sparkplug sizes. The wall thickness unit shown in the table without bracket is in metric system ie millimetres mm the british equivalents dimensional conversion ie inch is shown in bracket. 1 mm 0039 inches.
Nominal size carbon steel pipe od mm inch metric ksjis astm iso din metric inch other standard rule europe size 18 32 105 103 102 102. Iso metric profile external bolt thread internal nut thread basic mm size mm thread designation simple thread designation pitch. M 10 x 15. Above m24 is available on request.
Pipe thread sizes are based on an inside diameter id or flow size. For example 1214 npt identifies a pipe thread with a nominal inside diameter of 12 inch and 14 threads to the inch made according to the npt standard. Pipe thread sizes bsp threads a list of 15 thread sizes are defined by the standards ranging from 116 to 6. Nominal diameters for bsp and npt are not thread diameters but relate to the inside diameter of the pipe.
Thread identifying tools you need caliper a caliper is a useful tool that measures the outside diameter of a male thread and inside diameter of a female thread. A 34 npt pipe thread has an outside diameter of 1050 inches and 14 threads per inch.