Description of productsTechnical Information Tapping Torque ○Tapping Torque Equation for Forming Taps Based on the tensile strength of workpiece material, we prepare following equation to obtain tapping torque of standard forming taps. Condition : E ective length of internal screw is 1.5D. Thread height is 75%. Deforming resistance Tapping Torque Equation for Forming Taps Workpiece Materials (N/mm2) General Structure Steels, Low Carbon Steels Medium Carbon Steels, Alloy Steels Stainless Steels T : Tapping Torque (N-m) Wrought Aluminum Dc : Nominal Diameter of Tap (mm) P : Pitch (mm) Aluminum Die Castings Kf : Deforming resistance (N/mm2) Coppers, Wrought Copper Alloys Technical-8