304 & 305 Stainless Steel Torx Drive Flat Head Deck Screw
SS305, 304 and 316
StainGrip® 304 & 305 Stainless Steel Torx Flat Head Deck Screws are premium exterior fasteners engineered for maximum holding power, flush surface countersinking, and superior durability in traditional timber decking, pressure-treated lumber, cedar, and composite board installations. Manufactured from high-grade SS304 and SS305 stainless steel, these screws offer outstanding resistance against rust, outdoor weathering, and corrosive chemicals present in treated wood.
Key Features & Technical Benefits
Premium SS304 & SS305 Stainless Steel (Superior Corrosion Resistance): Formulated with high nickel and chromium content to provide long-lasting protection against rust, moisture, and chemical corrosion in all exterior wood-decking applications.
Countersunk Flat Head with Underhead Nibs: Features a classic flat head design equipped with self-countersinking underhead nibs that carve a neat recess, ensuring a flush, clean finish without splintering or raised wood fibers.
Deep Star Drive / Torx® Drive: Precision-molded T20 / T25 star drive recess provides optimal driver bit engagement, enabling maximum torque transfer while eliminating bit cam-out, slippage, and stripped screw heads.
Type 17 Auger Point (Fast Bite & Split Prevention): The razor-sharp Type 17 notched point cuts through tough wood fibers with ease, offering rapid thread engagement and preventing board splitting without requiring pre-drilling under standard conditions.
Coarse High-Low Thread Geometry: Deep, aggressive threads bite tightly into wooden joists, providing exceptional clamping force to pull deck boards tight and prevent board movement or squeaking over time.
Technical Specifications
Feature | Specification |
|---|---|
Material Grade | SS304 / SS305 Stainless Steel |
Head Style | Countersunk Flat Head (with Underhead Nibs) |
Drive System | T20 / T25 Star Drive (Torx) |
Point Type | Type 17 Auger Point |
Application | Pressure-Treated Wood, Cedar, Redwood, Timber & Composite Decking |
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.
