410/304/316 Stainless Steel #10 Hex Head Wood Roofing Screw with Ruspert Coating
Stainless steel 410, 304 and 316
StainGrip® 410 / 304 / 316 Stainless Steel #10 Hex Head Wood Roofing Screws with Ruspert Coating are premium, multi-barrier exterior metal-to-wood fasteners designed for fixing profile roofing sheets, wall siding, and trim directly into timber battens, purlins, or wood framing.
By combining the structural integrity and corrosion resistance of stainless steel with a high-performance 3-layer ceramic Ruspert barrier coating, these screws offer double-layer protection against severe weathering, chemical wood treatments (ACQ/CCA timber), and galvanic corrosion.
Key Features & Technical Benefits
Triple-Layer Ceramic Ruspert Surface Barrier:
Layer 1: Metallic zinc coating providing sacrificial galvanic protection.
Layer 2: High-grade chemical conversion film ensuring optimal paint adhesion and chemical stability.
Layer 3: High-temperature baked ceramic topcoat that seals out moisture, salt spray, atmospheric pollutants, and harsh outdoor chemicals.
Galvanic Corrosion Isolation: The non-conductive ceramic Ruspert topcoat electrically isolates the stainless steel body from dis-similar roofing metals (aluminum, galvanized zinc, copper, or treated wood), preventing localized bimetallic corrosion and red rust streaks.
Treated Timber (ACQ/CCA) Safe: The ceramic surface resists degradation caused by high copper and salt concentrations found in modern pressure-treated lumber.
Versatile Stainless Steel Material Alloys (410 / 304 / 316):
410 Stainless Steel: Heat-treated for high core hardness, facilitating rapid penetration through sheet steel without dulling or snapping the tip.
304 & 316 Stainless Steel: Formulated with high nickel and chromium (plus molybdenum in SS316) for ultimate resistance in high-humidity, industrial, and coastal marine environments.
Fast-Biting Type-17 Cut Point / Gimlet Point: Features a sharp piercing tip with a chip-clearing flute (Type-17) that cuts timber fibers quickly to eliminate wood splitting, speed up driving time, and prevent tip walking on sheet metal.
Pre-Assembled Weatherproofing EPDM Bonded Washer: Vulcanized EPDM rubber washer seals tightly around the shank under hex head compression, forming an airtight and watertight seal against rain, wind uplift, and thermal contraction.
Technical Specifications
Feature | Specification |
Screw Diameter / Gauge | #10 (Approx. 4.8mm Outer Thread Diameter) |
Material Grades | 410 Heat-Treated SS / SS304 (A2) / SS316 (A4) Marine Grade |
Coating Type | Multi-Layer Ceramic Ruspert Finish (Silver, Grey, Red, Brown, Black, etc.) |
Corrosion Performance | 500 hr / 1,000 hr / 1,500 hr Neutral Salt Spray Test Rated (ASTM B117) |
Head Style | Hex Washer Flange Head |
Drive Recess | 1/4" or 5/16" External Hex Socket Drive |
Point Style | Type-17 Slash Point or Sharp Piercing Gimlet Point |
Washer Assembly | Pre-Assembled Stainless Steel EPDM Bonded Washer |
Primary Applications | Corrugated Metal Roof Sheets to Wood Framing, ACQ Treated Decking, Coastal & Industrial Siding |
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.
