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The Truss Head Torx Drive Self Tapping Screw with Type 17 Points represents a specialized fastening solution designed to streamline assembly processes across demanding structural and architectural projects. Featuring a distinctive wide, low-profile truss head, this fastener provides an exceptionally large bearing surface. This specific geometry distributes clamping force evenly across thin materials, eliminating the risk of crushing or pulling through delicate substrates. The integration of a precision-machined Torx drive ensures a secure, positive fit that translates to zero cam-out, allowing operators to feel a firm, slip-free engagement during installation.
At the core of its efficiency is the Type 17 fluted point, which acts as a built-in drill bit. This sharp, self-centering tip captures and clears wood chips or metal debris instantly, carving its own precise pilot hole with a crisp cutting sound. We engineer these fasteners with versatile thread configurations—including full-thread, half-thread, coarse, fine, and specialized Hi-Lo (high-low) thread patterns. These specific thread mechanics drastically enhance pull-out resistance and prevent material splitting, even when working near the edges of dense timber or composite panels.
Utilizing these specialized fasteners translates directly into measurable operational efficiency and structural reliability. The immediate value lies in the elimination of pre-drilling and tapping stages, which significantly reduces labor hours and minimizes tool wear on large-scale job sites.
| Surface Finishing | Zinc or Ruspert Coating |
| Certification | ISO, GS, RoHS, CE, Cma |
| Material Standard | C1022A C10b21 |
| Standard | ASTM GB DIN ISO As3566 |
| Usage | Building,Decoration,Construction,Window |
| Length | 9mm-254mm |
| Drive | Torx |
| Transport Package | Export Shipping Standard Package |
| Specification | M3.5, M3.9, M4.2, M4.8, M5.5, M6.3 |
| Trademark | Donghuang |
| Origin | Zhejiang, China |
| HS Code | 73181400 |
| Production Capacity | 3000 Tons/Month |
These fasteners are ideal for securely fixing corrugated metal sheets and exterior cladding directly to timber purlins and battens. The wide head prevents weather ingress while maintaining a firm hold against wind uplift.
Essential for assembling warehouses, carports, and backyard sheds. The self-tapping nature accelerates the framing process, ensuring rigid connections between metal brackets and wooden beams without the delay of pre-drilling.
Perfect for fastening interior liner panels, composite boards, and acoustic panels to structural wood. The Type 17 point ensures the wood grain remains intact, delivering a clean finish without splintering.
Frequently utilized in complex electrical projects and ductwork where metal fixtures must be mounted securely to timber studs. The reliable Torx drive allows for precise torque control in tight, hard-to-reach spaces.
1. Select the Optimal Fastener: Assess the thickness and density of your materials to choose the correct length and thread type of the Type 17 truss head screw for your specific joint.
2. Prepare and Position: Mark your installation points clearly. Rest the sharp fluted tip directly on the mark; you will feel the point naturally grip the surface, preventing initial wandering.
3. Initiate the Drive: Using a power drill equipped with a matching Torx bit, begin driving at a low speed. You will hear a distinct cutting sound as the Type 17 point bites into the material and clears away debris, forming its own pilot hole.
4. Maintain Consistent Pressure: Apply steady, even forward pressure. The Torx drive ensures the bit stays firmly seated in the recess, translating your effort directly into rotational force without slipping.
5. Monitor Alignment and Flushness: As the screw advances, verify that the joined materials remain perfectly aligned before the final clamping force is applied.
6. Final Tightening: Drive the fastener until the wide truss head sits snugly against the surface. Stop when you feel firm resistance to avoid over-torquing, which protects both the material surface and the newly formed internal threads.
Q: How does the Type 17 point differ from standard self-tapping tips?
A: The Type 17 point features a specialized cut-out flute that acts like a drill bit. Instead of merely pushing material aside, it actively cuts and captures debris. This mechanism drastically reduces driving torque and prevents natural materials from splitting.
Q: Are these fasteners suitable for fastening aluminum components?
A: Yes, they are highly effective for securing aluminum and other non-ferrous metals.
The precision thread design creates a tight internal mating surface that resists loosening, even in environments subjected to continuous mechanical vibration.
Q: Can these screws be removed and reused during maintenance?
A: These fasteners can be safely backed out and reinstalled into the exact same threads during routine maintenance.
However, to maintain optimal holding power, we recommend limiting the number of reinstallations, especially in softer substrates.
Q: Do I need specialized equipment for installation?
A: No pre-drilling equipment is required. While a standard power drill or impact driver with a Torx bit yields the fastest results, the aggressive thread profile allows for manual installation with a hand screwdriver if necessary.
Q: What are the primary advantages of the truss head?
A: The extra-wide bearing surface eliminates the need for a separate washer.
It provides superior holding power on thin materials, prevents pull-through, and offers a low-profile, unobtrusive finish.
Q: What are the limitations to consider?
A: While incredibly versatile, they are optimized for wood, thin sheet metal, and composites.
For heavy-gauge steel plates or structural steel beams, a dedicated self-drilling (Tek) screw would be more appropriate to penetrate the thicker metal.
As a primary manufacturer with an extensive production capacity of 3,000 tons per month, we are fully equipped to support large-scale procurement demands with consistent reliability. Our dedicated engineering team provides comprehensive OEM and customization services, allowing clients to specify unique head styles, drive types, and custom painted color-matching to align perfectly with specific architectural aesthetics or brand requirements. To accommodate diverse inventory needs, we offer highly flexible packaging solutions. Clients can choose from bulk cartons, small poly-bag retail packaging, or specialized kitting services tailored for ready-to-assemble furniture and construction kits. Coupled with transparent volume-based pricing structures and flexible payment terms, our streamlined supply chain ensures rapid response times and punctual delivery for every major order, safeguarding your project timelines.
