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11/16 13/16 15/16 1-3/64 1-11/64-1-59/64 extra fine nominal diameter major diameter pitch (in) pitch (mm) tap drill size (inch) major diameter (mm) tpi #12 1⁄4 5⁄16 3⁄8 7⁄16 1⁄2 9⁄16 5⁄8 3⁄4 7⁄8 1 0.216 0.25 0.3125 0.375 0.4375 0.5 0.5625 0.625 0.75 0.875 1 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 25. ...
A thread chart is a reference for identifying the types of threads and the suitable replacements for a given product. It is helpful in determining the right thread size when repairing or replacing parts in machinery, tools, and other items with threaded connections.
29 paź 2016 · A single Data reference PDF for Fastener Thread Sizes, Pitches and Cross references across UNC, UNF, UN, BSW, BSF, SI & ISO Metric along with BSP, NPT, NPS & ISO Pipe Threads, American Threads and BA, Conduit and Cycle Threads.
You'll need to determine the spacing of the threads, per square inch (or thread to thread distances for metric connections), after measuring the diameter. It is important to be sure the thread pitch gauge properly fits on the threads to get the best accuracy. Note and compare your measurements with those in this guide.
The maximum and minimum pitch diameter (E) for each class of thread can be found in machinerys hand book. Select the proper wire size for either the number or threads per inch (US) or thread pitch (metric). Measured pitch dia (E) equals measurement over wires (M) minus decimal in “CONST” column.
Metric thread specifications are different because the thread pitch is defined by the distance between each thread in mm instead of threads per inch. For example, an M12x1.75 (coarse) thread has a 1.75mm pitch, while an M12x1.50 (fine)
British Association Thread Chart Thread Angle 47.5 Degrees No Decimal TPI Pitch Core Dia Thread Depth Radius Hex A/Flats Tapping Size MM Letter or Number 0 0.2362 25.4 0.0394 0.1887 0.0236 0.0071 0.413 0.2008 5.1 9 1 0.2087 28.2 0.0354 0.1665 0.0213 0.0064 0.365 0.1772 4.5 16
