Product Name | Stainless Steel Truss Head Self Drilling Screws |
Material | Made from stainless steel, these screws have excellent resistance to chemicals and salt water. They may be mildly magnetic. |
Head Type | Truss Head |
Length | Is measured from under the head |
Application | The extra-wide truss head distributes holding pressure to reduce the risk of crushing thin metal. Use these screws to secure metal wire to steel framing. They save you time and effort by drilling their own holes and fastening in a single operation |
Standard | Screws that meet ASME or DIN 7504 with standards for dimensions. |
1. Efficiency: The self-drilling capability eliminates the need for pre-drilling holes, saving time and labor during installation.
2. Strength and Durability: The combination of stainless steel and the truss head design ensures high strength and longevity, even under heavy loads or in challenging environments.
3. Versatility: Versatility: Suitable for steel, aluminum and other materials, making it suitable for a variety of industrial and construction applications.
4. Aesthetic Appeal: The polished finish of stainless steel offers an aesthetically pleasing appearance, which can be important in visible applications.
5. Cost-Effectiveness: While the initial cost may be higher compared to regular screws, the reduction in installation time and the elimination of pre-drilling steps can result in overall cost savings.
6. Self Drilling Tip: Enabling it to penetrate the material without the need for pre-drilling. This feature speeds up installation and reduces the need for additional tools.
7. Corrosion Resistance: Stainless steel provides excellent resistance to rust and corrosion, making these screws suitable for outdoor and harsh environmental conditions.
The extra-wide truss head distributes holding pressure to reduce the risk of crushing thin metal. Use these screws to secure metal wire to steel framing. They save you time and effort by drilling their own holes and fastening in a single operation.
Construction: Ideal for structural steelwork, metal framing, and other load-bearing applications.
Automotive: Used in vehicle bodies and chassis for secure and durable fastening.
Appliances and Equipment: Suitable for securing metal parts in household appliances and industrial machinery.
Thread Size | ST3.5 | (ST3.9) | ST4.2 | ST4.8 | ST5.5 | ST6.3 | ||
P | Pitch | 1.3 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |
a | max | 1.3 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |
dk | max | 6.9 | 7.5 | 8.2 | 9.5 | 10.8 | 12.5 | |
min | 6.54 | 7.14 | 7.84 | 9.14 | 10.37 | 12.07 | ||
k | max | 2.6 | 2.8 | 3.05 | 3.55 | 3.95 | 4.55 | |
min | 2.35 | 2.55 | 2.75 | 3.25 | 3.65 | 4.25 | ||
r | max | 0.5 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | |
R | ≈ | 5.4 | 5.8 | 6.2 | 7.2 | 8.2 | 9.5 | |
Socket No. | 2 | 2 | 2 | 2 | 3 | 3 | ||
M1 | ≈ | 4.2 | 4.4 | 4.6 | 5 | 6.5 | 7.1 | |
M2 | ≈ | 3.9 | 4.1 | 4.3 | 4.7 | 6.2 | 6.7 | |
dp | max | 2.8 | 3.1 | 3.6 | 4.1 | 4.8 | 5.8 | |
Drilling range(thickness) | 0.7~2.25 | 0.7~2.4 | 1.75~3 | 1.75~4.4 | 1.75~5.25 | 2~6 |