304/316 Stainless Steel Bugle head wood screw
Stainless steel 304 and 316
StainGrip® 304 & 316 Stainless Steel Bugle Head Wood Screws are heavy-duty timber fasteners engineered for smooth countersinking, superior clamping force, and exceptional structural integrity in decking, timber framing, fencing, pergolas, and outdoor joinery. Manufactured from premium SS304 and marine-grade SS316 stainless steel, these screws deliver ultimate protection against rust, harsh weather, and aggressive chemical wood preservatives, while the curved bugle head compresses wood fibers neatly without surface tearing.
Key Features & Technical Benefits
Premium SS304 & SS316 Stainless Steel (Ultimate Corrosion Protection): Formulated with high nickel and chromium content (plus molybdenum in SS316) to provide maximum long-term resistance against rust, coastal salt spray, and chemicals in ACQ pressure-treated timber.
Curved Bugle Head Design (Smooth Countersinking & Anti-Splitting): Features a smooth, tapered curved head that depresses outer wood fibers evenly into the surface rather than cutting or tearing them, preventing board splitting and ensuring a clean finish.
Type 17 Auger Point (Fast Bite & Split Prevention): The razor-sharp notched Type 17 tip cuts directly through tough timber fibers, enabling rapid thread engagement and preventing wood splitting without requiring pre-drilling under standard conditions.
Partial Thread Shank (Anti-Jacking Clamping Power): The unthreaded upper shank allows the top board to pull tightly against the structural joist, eliminating gaps, squeaking, and board jacking for an ultra-tight timber-to-timber joint.
Deep Drive System (Optimal Torque Transfer): Precision-molded drive recess (Torx / Internal Hex Drive) provides tight driver bit engagement and high torque transfer, completely eliminating bit cam-out, driver slippage, and stripped screw heads.
Technical Specifications
Feature | Specification |
Material Grade | SS304 / SS316 Marine Grade Stainless Steel |
Head Style | Curved Bugle Head |
Drive System | Torx / Internal Hex Drive |
Shank Type | Partial Thread / Half Thread |
Point Type | Type 17 Auger Point |
Application | Outdoor Decking, Timber Framing, Pergolas, Fencing & Joinery |
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.
