Modified Truss Head Self-Drilling ScrewSS410M4.2M4.8

Modified Truss Head Self-Drilling Screw SS410 M4.2 / M4.8 – High-Performance Fastening Solution for Industrial and Construction Applications

Engineered for durability, precision, and ease of installation, this modified truss head self-drilling screw is crafted from high-grade stainless steel SS410, offering superior mechanical properties and corrosion resistance across diverse environments. Ideal for professionals in construction, manufacturing, and infrastructure projects, it eliminates the need for pre-drilling while delivering exceptional holding power—making it a preferred choice for both structural and decorative fastening tasks.

Key Features:

• Enhanced Zinc Coating Protection – Provides reliable anti-rust performance with salt spray resistance exceeding 500 hours per ASTM B117 standards; optional hot-dip galvanizing available for extreme conditions like marine or chemical exposure.
• Self-Tapping Drill Point – Hardened tip (HRC 50–55) enables direct penetration into metal sheets without pilot holes, reducing labor time by up to 30% and minimizing installation errors.
• High Strength Performance – Tensile strength ranges from 800 to 1,000 MPa; shear strength between 600 and 750 MPa—ideal for dynamic load applications such as roofing, framing, and industrial assembly.
• Multiple Head Styles & Drive Types – Hex washer head, pan head, or countersunk options ensure flush finishes and improved surface integrity; Phillips, Pozidriv, or Torx drives prevent cam-out under high torque, enhancing efficiency and safety.
• Customizable Dimensions – Available in diameters from #8 to 1/4 inch (4.2mm–6.3mm) and lengths from 1/2" to 6" (12mm–150mm), allowing tailored solutions for unique project requirements.
• Global Compliance Certifications – Meets ISO 9001 quality management, ASTM F1514 performance standards, and DIN 7504 specifications; RoHS-compliant and REACH-certified for safe use in EU markets.

This advanced fastener combines material science and ergonomic design to deliver unmatched reliability. The hardened steel core resists deformation under stress, while the flute geometry ensures efficient chip removal during drilling—preventing thread damage and ensuring smooth operation even in repetitive installations. Its truss-shaped head distributes clamping force evenly, reducing surface indentation and improving sealing capabilities in waterproofing applications.

Commonly used in steel frame buildings, metal roofing systems, HVAC ductwork, agricultural structures, and modular construction, these screws are particularly effective in environments where fast installation, long-term durability, and aesthetic finish matter. Whether securing galvanized steel panels, wooden substrates, or composite materials, they provide consistent results across various substrates including thin gauge metals, plywood, and engineered boards.

Users consistently praise the product’s robustness and time-saving installation process. Many report significant reductions in labor costs due to the elimination of pilot hole preparation, especially when working on large-scale commercial projects. Professionals also appreciate the wide selection of drive types and head configurations, which allows customization based on tool compatibility and finish preferences.

Frequently Asked Questions:

1. Can this screw be used on aluminum? Yes, it performs well on aluminum sheets due to its hardened drill point and optimized threading.
2. Is it suitable for outdoor use? Absolutely—it features zinc coating that protects against moisture and UV degradation, making it ideal for exterior applications.
3. What’s the difference between hex washer head and pan head? The hex washer head offers better pressure distribution and sealing, whereas the pan head provides a more traditional appearance with moderate load-bearing capacity.
4. Do I need special tools? Standard power drivers compatible with Phillips, Pozidriv, or Torx bits work efficiently—no specialized equipment required.

Product Categories : Wood Screws > Truss Self Drilling Screws