Threads: For Unified Threads
Class: 2B
Flutes: Thread Forming Taps
Tolerance Class: YAMAWA G Class
Oil Grooves: ~ NO.4 = 0, NO.5 ~ = 1
Chamfer Length: P = 4P (For Through Hole), B = 2P (For Blind Hole)
Surface Treatment: Nitride

For more information, please refer to the attachment.