Cap Head Torx Screw
Specifications of Cap Head Torx Screw
The groove shape of the torx screw is in the shape of a flower. When using a Torx screwdriver to tighten the screw, the force will be evenly transmitted to the inner torx groove at 15°, which can transmit the tightening torque more effectively.
|
thread diameter d |
M2 | M2.5 | M3 | (M3.5) | M4 | M5 | M6 | M8 | M10 | |
| P | pitch | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.25 | 1.5 |
| a | max | 0.8 | 0.9 | 1 | 1.2 | 1.4 | 1.6 | 2 | 2.5 | 3 |
| dk | max=nominal size | 3.8 | 4.5 | 5.5 | 6 | 7 | 8.5 | 10 | 13 | 16 |
| min | 3.62 | 4.32 | 5.32 | 5.82 | 6.78 | 8.28 | 9.78 | 12.73 | 15.73 | |
| k | max=nominal size | 1.55 | 1.85 | 2.4 | 2.6 | 3.1 | 3.65 | 4.4 | 5.8 | 6.9 |
| min | 1.41 | 1.71 | 2.26 | 2.46 | 2.92 | 3.47 | 4.1 | 5.5 | 6.54 | |
| slot | 6 | 8 | 10 | 15 | 20 | 25 | 30 | 45 | 50 | |
| A | reference value | 1.75 | 2.4 | 2.8 | 3.35 | 3.95 | 4.5 | 5.6 | 7.95 | 8.95 |
| t | max | 0.84 | 0.91 | 1.27 | 1.33 | 1.66 | 1.91 | 2.29 | 3.05 | 3.43 |
| min | 0.71 | 0.78 | 1.01 | 1.07 | 1.27 | 1.52 | 1.9 | 2.66 | 3.04 | |
| r | min | 0.1 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.4 | 0.4 |
| X | max | 1 | 1.1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | 3.2 | 3.8 |
Advantages of Cap Head Torx Screw
1. Corrosion-resistant. Stainless steel is corrosion-resistant and suitable for outdoor facilities that require wind and sun exposure.
2. Heat resistance and high temperature resistance. Stainless steel cap head torx screws not only have good heat resistance for high temperatures but also can withstand low or even ultra-low temperatures, making it very advantageous for use in harsh cold areas.
3. High strength and hardness. With high strength and hardness, as well as wear resistance, torx screws can be used in public places and outdoor facilities.
4. High efficiency of assembly for the torx head, it is not easy to slip, and the lifespan of the batch head is longer.
