Wholesale Type 17 Cutting Tail Roofing Screws | Premium Timber Fasteners
In residential timber house construction, heavy-duty wooden framing, and outdoor roofing contracting, securing metal cladding to wood substrates demands specialized woodworking engineering. Our factory-direct Cutting Tail (Type 17) roofing screws are precision-engineered to prevent timber splitting, delivering rapid wood penetration and massive pull-out resistance under extreme wind loads.
The Type 17 Flute Advantage & Metallurgical Engineering
Manufactured from premium cold-heading quality C1022A carbon steel or grade-304 stainless steel, our fasteners undergo a continuous, mathematically controlled hardening process. This ensures an ultra-sharp cutting edge balanced with a ductile core to prevent head-shearing under high installation torque.
Precision-Formed Type 17 Cutting Tail:Featuring a specialized slotted groove (flute) at the screw tip. As the screw drives in, this sharp notch acts as a miniature wood drill bit, automatically slicing and clearing timber fibers to eliminate internal pressure. This completely prevents wood splitting, even when driving near the edges of hard timbers or fragile fiberboards.
Deep, Wide Single-Lead Wood Threads:Designed with an aggressive sharp thread profile. Unlike fine threads that chew and strip wood grain, these deep wood threads imbed themselves firmly into softwoods, treated timbers, and MDF, generating maximum long-term mechanical grip.
Weather-Tight EPDM Sealing Flange:Features a high-torque hexagonal head with an integrated flange, perfectly pre-assembled with a vulcanized EPDM bonded rubber washer. Under compression, the resilient rubber liner completely seals the penetration hole, absorbing thermal expansion and resisting ozone cracking from -40°C to 120°C.
Premium Anti-Corrosion Surface Treatments
To withstand severe coastal environments, chemical timber treatments (like CCA/ACQ), and harsh outdoor weather, we supply global distributors with verified specialized coatings passing strict salt-spray testing audits:
Surface Finish Type
Salt Spray Rust Resistance
Primary Project Application Environment
Yellow/White Zinc Plated
24 Hours - 72 Hours
Standard interior timber framing, general-purpose dry wood enclosures.
Ruspert Coating (Multi-Layer)
500 Hours - 1500 Hours
Industrial wood buildings, coastal decking, heavy acid rain
Mechanical Galvanized (Class 3/4)
Up to 1000 Hours expose
Premium external roofing, outdoor treated timber constructions, infrastructure framing.
Global B2B Supply Chain & Professional OEM Customization
As an established hardware fastener manufacturer based in China, we streamline procurement processes for large-scale hardware importers, wholesalers, and private labels:
Tailored Structural Dimensions: Outer diameters ranging from #8 (4.2mm) up to #14 (6.3mm), with customizable extended lengths to fit diverse insulated timber sandwich panels.
Heavy-Duty Seaworthy Packaging:Available in 25kg bulk industrial cartons, reinforced woven bags, or small customized retail box packs custom-printed with your company logo and logistical barcodes.
Secure your heavy-duty wooden projects with verified factory-direct reliability. Contact our engineering sales desk today to request our latest B2B bulk price sheets, full dimensional catalogs, or free testing samples.
