Product Description
Stable Dual-Drive Performance for High-Torque Fastening
The Hex-Star Recess Drive is designed for screws that require flexible tool compatibility, stable bit engagement, and reliable torque transfer during fastening.
By combining hexagonal and star-shaped recess geometry, Hex-Star supports both hex tools and star drivers, helping reduce bit slippage, screw head stripping, and installation fatigue in demanding fastening applications.
- Hex-Star Recess for Dual Tool Compatibility
The Hex-Star recess can be used with both hex tools and star-shaped drivers, giving users more flexibility when selecting fastening tools.
- Higher Torque Transfer
The optimized recess geometry helps improve torque transmission while reducing the risk of screw head stripping under higher driving force.
- Secure Bit Engagement
Hex-Star helps the driver fit securely into the recess, reducing slippage and improving installation control during fastening.
- More Reliable Fastening Performance
Designed for stable bit engagement, Hex-Star helps reduce physical fatigue, improve fastening consistency, and extend screw service life.
Specification
Hex-Star vs Common Drive Recesses | Torsional Strength Test
Compared with common drive recesses such as Phillips, Square, and star-shaped drives, the Hex-Star Recess delivers a higher ultimate torque range before failure. In the torsional strength test, Hex-Star H3T20 reached around 17 Nm, showing stronger torque capacity than #2 Phillips, #2 Square, and T20 recess designs.
This result is especially important for high-torque fastening applications where bit slippage, cam-out, and screw head stripping can affect installation quality. By combining hexagonal and star-shaped recess geometry, Hex-Star improves bit engagement and torque transfer while giving users more flexibility in tool selection.
Why This Matters?
For screws used in demanding fastening conditions, the recess design directly affects torque performance, installation stability, and screw head durability. Hex-Star helps support:
• Higher ultimate torque performance
• Dual compatibility with hex and star-shaped drivers
• Reduced cam-out and bit slippage risk
• More stable bit engagement under load
• Lower risk of screw head stripping and recess damage
• More reliable fastening in high-torque applications