304/316 Stainless Steel Type 17 Chipboard Screw with SS Washer
Stainless steel 304 and 316
StainGrip® 304 & 316 Stainless Steel Type 17 Chipboard Screws with Stainless Steel Washers are heavy-duty wood fasteners engineered for superior clamping power, watertight sealing, and long-lasting structural integrity in exterior timber framing, roofing, cladding, and chipboard installations. Manufactured from high-grade SS304 and marine-grade SS316 stainless steel, these screws deliver ultimate protection against rust, industrial weathering, and harsh marine environments while preventing moisture ingress and surface damage.
Key Features & Technical Benefits
Premium SS304 & SS316 Stainless Steel (Ultimate Corrosion Protection): High nickel and chromium alloy formulation (with added molybdenum in SS316) provides maximum resistance against rust, outdoor weathering, coastal moisture, and chemical wood treatments.
Pre-Assembled Stainless Steel Sealing Washer: Features a broad stainless steel washer with a durable sealing backing that evenly distributes clamping force across soft timber and chipboard surfaces, providing a weather-tight seal against moisture penetration.
Type 17 Auger Point (Fast Drilling & Split Prevention): The razor-sharp notched Type 17 point cuts cleanly through wood fibers, allowing rapid thread engagement and preventing board splitting without requiring pre-drilling under standard operating conditions.
Deep Precision Driver Recess (Torx / Pozidriv Options): Precision-molded drive recess ensures optimal bit engagement and maximum torque transfer, eliminating driver bit cam-out, slippage, and stripped screw heads during high-speed power installation.
Aggressive Coarse Wood Threads: Deep thread geometry bites firmly into chipboard, timber joists, and engineered wood, delivering high pull-out strength and tight, lasting board-to-substructure clamping.
Technical Specifications
Feature | Specification |
Material Grade | SS304 / SS316 Marine Grade Stainless Steel |
Head Style | Countersunk Head with Pre-Assembled SS Sealing Washer |
Drive System | Torx / Pozidriv (Pozi) Drive |
Point Type | Type 17 Auger Point |
Application | Timber Framing, Chipboard, Exterior Cladding, Roofing & Outdoor Wood Substrates |
Stainless Steel Grades:
o 304 / 18-8 Stainless Steel: Excellent corrosion resistance, ideal for general applications.
o 305 Stainless Steel: High nickel content, non-magnetic, ideal for cold forming and deep drawing.
o 316 Stainless Steel: Marine-grade, superior resistance to salt water and chemicals.
Applicable Standards:
o Dimensional: ASME B18.6.3 / ASME B18.2.1 / ANSI
o Material / Physical: ASTM F593 (Group 1: 304/305, Group 2: 316) / ASTM A240
Certifications: MTR (Material Test Report) / Mill Certs available upon request.
Fast Dispatch for Stocked Items: Ready-to-ship inventory available for quick order dispatch.
Factory-Direct Bulk Production: Competitive direct-from-factory lead times for wholesale and custom orders.
Flexible International Shipping: Comprehensive shipping options including FOB, CIF, and DDP (Door-to-Door with duties paid).
Tracking & Logistics: Full shipment tracking provided from factory loading to final delivery.
We offer full OEM/ODM manufacturing to meet your specific application needs.
Head Marking & Design: Custom head logo, drive type, and head shape.
Dimensions & Tolerances: Custom sizes according to ASME standards or customer drawings.
Head Painting & Coating: Head color matching, passivation, and specialty finishes.
Private Label Packaging: Custom inner/outer box design, polybags, and barcode labeling.
Samples: Custom samples and initial inspection reports available before full production.
Flexible custom packaging solutions available for both wholesale and retail markets:
Multiple Packaging Options: From small polybags and small inner boxes to industrial bulk packing.
Custom Printing & Logo: Custom box design, printed logos, and brand artwork.
Labeling & Barcodes: Private labels, UPC/EAN barcodes, part numbers, and shipping marks.
