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TMA series is designed to provide an effective screw fixing in light alloy materials with low installation torque and high stripping torque.
TMS series is the cutting notch combined with the profiled thread root providing low installation torques, while the special thread form provides high stripping torques in all thermosetting materials.
TMP series is designed for use in thermoplastics. The key design features are a profiled thread root to assist plastic flow, a 30° flank angle to reduce boss bursting forces, and an 8° pitch angle.