304/316 Stainless Steel Painted Wafer head type F metal sheet screw
Stainless steel 304 and 316
StainGrip® 304 & 316 Stainless Steel Painted Wafer Head Torx Drive Type F Sheet Metal Screws are specialized thread-cutting fasteners engineered for low-profile surface fastening into heavy-gauge sheet metal, aluminum extrusions, metal siding, and architectural panels. Manufactured from high-grade SS304 and marine-grade SS316 stainless steel, these screws combine maximum corrosion resistance with an ultra-wide painted wafer head for superior clamping force and seamless aesthetic integration.
Key Features & Technical Benefits
Premium SS304 & SS316 Stainless Steel (Ultimate Corrosion Protection): Formulated with high nickel and chromium content (with added molybdenum in SS316) to provide exceptional resistance against rust, coastal moisture, outdoor weathering, and harsh chemical environments.
Low-Profile Painted Wafer Head (Ultra-Wide Bearing Surface): Features a broad, ultra-flat wafer head that distributes clamping force evenly across sheet metal to prevent material distortion or pull-through, coated with a durable painted finish to match exterior panels and conceal the fastener.
Type F Thread-Cutting Point (Self-Tapping into Thick Substrates): Equipped with a blunt end and sharp cutting flutes that carve clean machine threads directly into thick sheet metals, aluminum extrusions, castings, and dense plastics without thread galling or binding.
Deep Torx Drive System (Cam-Out Prevention): Precision-molded star drive recess ensures tight driver bit engagement, delivering high torque transfer while eliminating driver bit cam-out, slippage, and stripped screw heads during installation.
Vibration-Resistant Machine Thread Engagement: Produces a custom-cut, zero-clearance machine thread fit within pre-drilled holes, offering high resistance to pull-out forces and dynamic vibration loosening.
Technical Specifications
Feature | Specification |
Material Grade | SS304 / SS316 Marine Grade Stainless Steel |
Head Style | Low-Profile Wafer Head (Durable Painted Finish) |
Drive System | Torx Drive |
Point Type | Type F Thread-Cutting Point (Blunt with Cutting Flutes) |
Application | Heavy-Gauge Sheet Metal, Architectural Panels, Aluminum Profiles & Plastics |
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.
