The TORX® Drive System was specifically designed to provide a simple, cost-effective solution to the problems inherent in the process of installing and removing fasteners. Used in nearly every industrialized nation in a multitude of industries, the TORX® Drive System can enhance product reliability, increase productivity, and reduce total assembly costs all of which are keys to remaining competitive in today's marketplace.

The TORX Drive System for easier, more efficient fastener driving.

The hex-lobular design of the TORX® Drive System provides optimum torque transfer and eliminates the need for excessive end load pressure while driving the fastener. The TORX® configuration also virtually eliminates tool "camout" and slippage that can damage the head of the fastener and mar surrounding finished surfaces. These are some of the reasons why the TORX® Drive System has become the world's fastest growing fastener drive system.

Higher Torque Transfer

The TORX® Drive System applies torque at a drive angle of 15º rather than the inefficient 60º drive angle of the hex drive to provide higher torque transfer. The 15º drive angle closely simulates the optimum torque transmission angle found in gears.

Reduced Camout & End Load

The TORX® recess has straight, vertical side walls so, unlike cruciform drive systems, no camout forces are created to push the driver up and out of the fastener. Since camout is virtually eliminated, little or no end load is required. Also, the TORX® recess completely encloses the driver tip to reduce tool slippage and damage to the fastener and surrounding surfaces.

Broad Contact Surface

The unique hex-lobular design of the TORX® Drive System provides greater depth of lobe engagement between the driver and the fastener. This greater lobe depth allows the driving forces to be spread over a broader surface as opposed to the point contact of many drive systems. This makes for more efficient torque transfer and extends tool life.

Longer Tool Life

The TORX® Drive System improves tool life since it is free of the self-destructing elements inherent in other drive systems. Points of stress that round off corners of both fasteners and drive tools are simply not a factor with the hex-lobular TORX® design. Radial forces that can cause the corners of hex sockets to fracture are drastically reduced due to the 15º drive angle.

Reduced Worker Fatigue

Ergonomic studies have shown the TORX® Drive System to reduce fatigue and muscular stress during the manual assembly of fasteners. Since the driving forces of a TORX fastener and the mating drive tool are parallel, the TORX® Drive System requires little or no end load to keep the driver engaged in the recess.

Faster Tool Engagement

The TORX® Drive System is designed with a lead-in chamfer to help guide the drive tool into the fastener recess. With six lobes, you are never more than a sixth of a turn away from engagement, making TORX® Drive fasteners ideal for automated driving equipment.