Description
The Countersunk Torx Screw is a precision-engineered fastener designed for applications that require high torque transmission, secure fastening, and a perfectly flush surface finish. Manufactured from premium 304 stainless steel, this screw combines excellent corrosion resistance with dependable mechanical strength, making it suitable for both indoor and outdoor environments.
Featuring a flat countersunk head and an internal Torx (hexalobular) drive, this fastener minimizes cam-out and slippage during installation while enabling higher tightening torque compared to traditional drive types. The countersunk design allows the screw head to sit flush with the material surface, delivering a clean, professional appearance and reducing interference with surrounding components. These characteristics make the Countersunk Torx Screw a reliable solution for electronics, machinery, automotive assemblies, furniture manufacturing, and general industrial fastening applications.
Features & Benefits
- High Corrosion & Oxidation Resistance: Made from high-quality 304 stainless steel, this screw resists rust, corrosion, and oxidation — even in humid or outdoor environments.
- Internal Torx Drive (Plum Groove) : Facilitates high torque capability and makes locking easier, reducing the risk of slipping during fastening.
- High Strength & Dimensional Stability:Excellent hardness and tensile strength ensure dependable fastening under mechanical stress, without deformation.
- Deep, Uniform Thread Design: Precision threading ensures secure engagement, consistent load distribution, and reliable performance across various materials.
Specification
|
Nominal diameter -d |
M3 |
M4 |
M5 |
M6 |
|
|
Pitch -p
|
0.5 |
0.7 |
0.8 |
1 |
|
|
dk |
max |
5.6 |
7.5 |
9.3 |
10.3 |
|
min |
5.5 |
7.4 |
9.2 |
10.2 |
|
|
k |
max |
1.7 |
2.2 |
2.9 |
3.3 |
|
min |
1.6 |
2.1 |
2.8 |
3.2 |
|
|
Suitable for hexagonal wrench |
T10 |
T20 |
T25 |
T30 |
|
FAQ:
Q1: What is the benefit of a Torx (Hexalobular) drive over a Phillips drive?
A: The Torx drive allows for higher torque transfer and significantly reduces the chance of "cam-out" (where the screwdriver slips out of the head). This leads to less damage to the fastener and tools during high-speed assembly.
Q2: Do I need to countersink the hole before installation?
A: Yes. To achieve a perfectly flush finish, the receiving material must be pre-drilled with a conical countersink that matches the angle of the screw head.
Q3: Are these screws magnetic?
A: Mostly no. While carbon steel is strongly magnetic, 304 stainless steel fasteners are generally non-magnetic or only slightly magnetic due to the manufacturing process.
Q4: Does the countersunk head affect structural strength?
A: The countersunk design allows for a flush finish while maintaining reliable clamping force when installed correctly, making it suitable for both structural and aesthetic applications.
