Stainless Steel Self-Drilling Screw with Truss Head

High-Quality Stainless Steel Self-Drilling Truss Head Screws for Industrial Applications

Engineered for durability and precision, these stainless steel Self-Drilling Screws with truss head and black zinc finish are ideal for demanding construction and manufacturing environments. Designed to eliminate the need for pre-drilling or tapping, they offer a time-saving solution for fastening thin metals such as galvanized steel sheets, light gauge framing, and color-coated metal roofing panels. Whether you're working in commercial roofing, structural assembly, or industrial fabrication, this product delivers consistent performance under high-stress conditions.

Key features include a robust alloy composition—available in grades A2-70, A4-80, SS304, SS316, and SS410—to ensure corrosion resistance across diverse climates and applications. The truss head design provides a wide bearing surface, reducing the risk of material deformation during installation while enhancing holding power. With two standard metric sizes (M4.2 and M4.8), users can select the optimal fit for their specific project requirements without compromising on strength or accuracy.

Manufactured to meet ISO 9001 quality standards and aligned with GB/DIN specifications, each screw undergoes rigorous testing to guarantee dimensional consistency, mechanical integrity, and long-term reliability. The black zinc coating not only adds an aesthetic appeal but also acts as a protective barrier against moisture, chemicals, and environmental wear—making it suitable for both indoor and outdoor installations. Unlike conventional fasteners that degrade over time, these screws maintain their structural properties even in harsh weather or corrosive settings.

These self-piercing screws are particularly effective when used on materials like iron sheets, cold-formed steel, and composite panels where traditional screws might strip or fail. Their sharp point and helical flute design allow for seamless penetration into sheet metal, minimizing vibration, noise, and tool wear during installation. This makes them a preferred choice among professionals in HVAC systems, modular building construction, agricultural structures, and automotive assembly lines.

Customers appreciate how seamlessly these fasteners integrate into automated threading equipment and hand-held drills alike, significantly improving workflow efficiency. Many report reduced downtime due to fewer broken screws and less rework, especially in projects involving repetitive fastening tasks. The ability to customize lengths, coatings, and head styles further enhances versatility—making OEM and ODM orders highly feasible for bulk buyers seeking tailored solutions.

Common questions often revolve around compatibility with different substrates, with users confirming successful use on aluminum, galvanized steel, and painted surfaces. Some inquire about torque recommendations; however, since the screw’s self-drilling nature reduces the need for excessive force, standard hand tools suffice for most applications. For those concerned about longevity in marine or humid environments, the black zinc finish combined with stainless steel alloys ensures extended service life compared to untreated alternatives.

Product Categories : Wood Screws > Truss Self Drilling Screws