305/304 Stainless Steel Flat head serrated thread Deck screw

SS305, 304 and 316

StainGrip® 304 & 305 Stainless Steel Flat Head Serrated Thread Deck Screws are high-performance exterior fasteners engineered for fast driving, low installation torque, and superior clamping power in traditional timber decking, ACQ pressure-treated lumber, cedar, redwood, and wood-composite applications. Manufactured from premium SS304 and SS305 grade stainless steel, these deck screws provide exceptional protection against rust, outdoor weathering, and harsh preservatives while featuring specialized serrated threads to prevent board splitting.


Key Features & Technical Benefits

  • Premium SS304 & SS305 Stainless Steel (Superior Corrosion Protection): High nickel and chromium alloy formulation delivers long-lasting protection against rust, wet outdoor environments, coastal moisture, and aggressive chemicals found in ACQ pressure-treated wood.

  • Specialized Serrated Threads (Lower Drive Torque & Split Prevention): Features precision-engineered thread serrations that act like miniature saw teeth to cut through dense wood fibers, significantly reducing driving torque, friction, and heat while minimizing the risk of timber splitting..

  • Deep Torx Drive System: Precision-molded T20 / T25 star drive recess provides optimal driver bit engagement, delivering maximum torque transfer while eliminating driver bit cam-out, slippage, and stripped screw heads.

Technical Specifications

Feature

Specification

Material Grade

SS304 / SS305 Stainless Steel

Head Style

Countersunk Flat Head (with Underhead Nibs)

Drive System

T20 / T25 Torx Drive

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.

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Get a Fast Quote Today

Looking for standard or custom stainless steel screws? Contact our engineering team for factory-direct pricing, MTR reports, and fast shipping. We will get back to you within 1 business day upon receiving your inquiry.

Address: Xinhua high-tech zone, Dainnan town, Taizhou city, China, 225721

StainGrip Fastening Solutions Limited © 2026. All rights reserved.

Number: +86 187 2155 3005

Leading Manufacturer of Stainless Steel Screws. Premium solutions for Roofing, Decking, and Wood Framing Fastening.

Email: sales@staingrip.com

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