RP 1/4" BSPPL HSS Bottoming Tap Leakproof Joint
Parallel (straight) thread, British Standard Pipe Parallel thread BSP; originally also known as British Standard Pipe Fitting thread/BSPF which have a constant diameter. The Rp-series screw thread is made to ISO-7 or BS-21 or EN 10226-1
For producing precision threads by hand tapping, ideal for finishing blind holes.
General purpose use
Through & blind holes
Suitable for both hand and machine operations
Threads per inch 19
Drill diameter 11.5mm