Description
The 410 Stainless Steel Countersunk Self Tapping Self Drilling Screws are precision-engineered fasteners designed to combine the advantages of self-tapping, self-drilling, and countersunk flat head functionality. Made from high-strength 410 stainless steel, these screws offer excellent hardness, wear resistance, and moderate corrosion protection—ideal for indoor and mild outdoor applications. Their cross-groove (Phillips) drive allows easy, stable torque transfer during installation, while the flat countersunk head ensures a smooth, flush finish after fastening. Designed according to DIN 7504P standards, these screws efficiently drill and tap in one step, eliminating the need for pre-drilled pilot holes and reducing installation time. These self tapping screws are widely used in industrial, commercial, and construction environments where secure, efficient fastening and a flush finish are required.
Features & Benefits
- High-Strength 410 Stainless Steel: Offers excellent hardness, tensile strength, and wear resistance, ensuring secure fastening performance even under high torque conditions.
- One-Step Installation: The integrated drill point allows the fastener to drill and tap simultaneously, eliminating the need for pre-drilling and separate tapping, thereby significantly increasing assembly speed and efficiency.
- Secure & Durable: The deep thread design ensures uniform force and a strong, non-slipping lock. It offers good corrosion resistance and oxidation resistance, making it suitable for both indoor and mild outdoor use.
- Slip-Resistant Drive: The standard cross groove drive ensures easy and stable installation with minimal risk of driver slippage.
Specification
|
Specification |
M2.9 |
M3.5 |
M4.2 |
M4.8 |
M5.5 |
M6.3 |
|
Pitch -p |
1.1 |
1.3 |
1.4 |
1.6 |
1.8 |
1.85 |
|
Head diameter -dk |
5.5 |
7.3 |
8.4 |
9.3 |
10.3 |
11.3 |
|
Head thickness -k |
1.7 |
2.35 |
2.6 |
2.8 |
3 |
3.15 |




