305/304 Stainless Steel Flat head Torx Drive type 17 Deck screw
SS305, 304 and 316
StainGrip® 304 & 305 Stainless Steel Flat Head Torx Drive Type 17 Deck Screws are professional-grade exterior fasteners engineered for maximum holding power, smooth countersinking, and long-lasting durability in traditional timber, ACQ pressure-treated lumber, cedar, redwood, and composite decking installations. Manufactured from premium SS304 and SS305 stainless steel, these screws deliver outstanding resistance against rust, outdoor weathering, and harsh wood preservatives.
Key Features & Technical Benefits
Premium SS304 & SS305 Stainless Steel (Superior Corrosion Resistance): Formulated with high nickel and chromium content to provide long-term protection against rust, moisture, and chemical corrosion in tough outdoor environments.
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 perfectly flush finish without splintering or tearing wood fibers.
Deep Torx Drive System: 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 wood fibers with ease, providing rapid thread engagement and preventing board splitting without requiring pre-drilling under standard conditions.
Aggressive Coarse Threads: Deep thread geometry bites 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 Torx Drive |
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.
