Tappi Prong conditions duct symbolR-YN+RZ N - RZMachining, in N+RS N - RSlow-speed LS-N-RZtapping area LS-N-RSMS+RSHPsRZSURZR+V
Ta Surfap material ce treatmentHSSHSS OXHSS NIHSS OXHSS NIHSSHSS-P CoatingHSS-P CoatingHSS Coating
NameFor genera purposel For steelFor nonferrous materialsLong, for steelLong, for nonferrous materialsFor miniature threadsFor miniature threads High performanceFor stainless steelCoated
BoredHole Shape
For Metric Threads⑥-63⑥-14⑥-26⑥-23⑥-36⑥-60⑥-38
For Uinified Threads⑥-17⑥-29⑥-60
For Whitworth Threads
For Screw Threadsused on Sewing Machines
Pipe Threads
American Pipe Threads
For Miniature Threads⑥-62⑥-62
For Trapezoidal Threads
~S25CLow carbon steels◆ ◎◆ ◎◆ ◎◆ ◎◆ ◆ ◎◆ ◆ ◎◆ ◆ ◎
S25C~S45CMedium carbon steels◆ ◎◆ ◎◆ ◆ ◎◆ ◆ ○◆ ◆ ◎
S45C~High carbon steels◆ ◆ ○
SCMAlloy steels
25~35HRCHeat treated steel
35~45HRCHeat treated steel
45~55HRCHeat treated steel
55~63HRCHeat treated steel
SUSStainless steels(SUS)◆ ○◆ ◆ ◎◆ ◆ ◎◆ ◆ ○
SKDTool steels
SCCast steels
FCCast irons
FCDDuctile cast irons
CuCopper◆ ◆ ○
BsBrass◆ ◎
BsCBrass castings
PBBronze
ALWrought aluminum◆ ◎◆ ◎◆ ○◆ ◎◆ ◎
AC, ADCWrought aluminum◆ ◎◆ ◎◆ ○◆ ◎
MgMagnesium alloy die castings
ZDCZinc alloy die castings◆ ◎◆ ◎◆ ○◆ ◎
Titanium alloys◆ ○
Nickel base alloys
Thermosetting plastic
Thermoplastic resin