Selection chart of Thread Mills

Tappi Prodng conditions uct symbolMC-HLCHelical ta MC-CSLCpping area PRMLPRML TI
Ta Surfap material ce treatmentHSS-Co CoatingHF CoatingHF CoatingHF Coating
NameFor general useFor generaluse, carbideFor heat- resistant alloys, carbide
BoredHole Shape
For Metric Threads⑨-11⑨-8⑨-4⑨-6
For Uniified Threads⑨-4⑨-6
For Whitworth Threads
For Screw Threads Pipused on Sewing Machines e Threads⑨-12⑨-9
American Pipe Threads
For Miniature Threads
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