What types of stainless steel screws do you manufacture?

StainGrip specializes in the production of high-quality SS304, SS305, and SS316 stainless steel screws. Our core product range includes roofing screws, decking screws, and wood screws, engineered for superior durability and corrosion resistance.

Are you a trading company or a manufacturer?

StainGrip is a direct manufacturer specialized in stainless steel fasteners. We have full control over the production process, ensuring consistent quality and competitive factory-direct pricing for our global partners.

Do you offer fasteners for B2B and industrial clients?

Yes, we provide comprehensive OEM/ODM services tailored for B2B and industrial clients, including customized packaging and head marking to align with your brand identity and technical specifications.

What are the differences between 304, 305, and 316 stainless steel screws?

Grade 304 is for general-purpose corrosion resistance. Grade 305 features a lower work-hardening rate, ideal for high-volume decking installations. Grade 316 offers maximum protection in marine or high-chloride environments.

What is the typical lead time for bulk orders to the US or Europe?

For standard stainless steel screws, our lead time is typically 30-45 days. We also offer expedited shipping and flexible logistics solutions for urgent wholesale orders to ensure project timelines are met.

410/304/316 Stainless Steel #14 Hex Head Wood Roofing Screw with Serration Thread

Stainless steel 410, 304 and 316

Material

Size

Length

Coating

StainGrip® 410 / 304 / 316 Stainless Steel #14 Hex Washer Head Wood Roofing Screws are heavy-duty, weather-sealing timber fasteners engineered for securing corrugated metal roofing panels, siding sheets, and architectural cladding directly to wooden framing, purlins, or timber battens. Pre-assembled with a stainless steel EPDM bonded sealing washer, these heavy-diameter (#14) fasteners deliver maximum pull-out strength, high resistance to wind uplift, and a long-lasting watertight seal in harsh outdoor environments.

Key Features & Technical Benefits

Versatile Stainless Steel Material Options (410 / 304 / 316 Grades):
- 410 Stainless Steel: Heat-treated for enhanced surface hardness, allowing easy penetration through thick sheet metal panels without dulling the point.
- 304 & 316 Stainless Steel: Engineered with high nickel and chromium content (plus molybdenum in SS316) for ultimate protection against rust, severe outdoor weathering, chemical wood treatments, and coastal salt spray environments.
Pre-Assembled Stainless Steel EPDM Sealing Washer: Fitted with a vulcanized EPDM rubber washer bonded to a stainless steel backing disc that forms a watertight seal against rain, snow, and wind-driven moisture while dampening thermal expansion.
Heavy-Duty #14 Diameter Shank & Deep Coarse Wood Threads: Large-gauge shank provides exceptional shear strength, while deep, widely spaced wood threads slice smoothly into wooden purlins, delivering maximum holding power and pull-out resistance under wind loads.
Sharp Gimlet Piercing Point: Razor-sharp tip pierces metal cladding sheets quickly and bites immediately into timber framing, enabling fast driving and accurate placement without walking.
Hex Washer Head Drive: External hex washer head allows 6-point nut setter socket engagement, delivering high torque transfer and precise control over EPDM washer compression without slippage or head stripping.

Technical Specifications

Feature	Specification
Screw Size / Diameter	#14 (6.3mm Nominal Outer Diameter)
Material Grade	410 Heat-Treated SS / SS304 (A2) / SS316 (A4) Marine Grade
Head Style	Hex Washer Flange Head
Washer Type	Pre-Assembled Stainless Steel EPDM Bonded Sealing Washer
Drive System	External Hex Socket Drive (Nut Setter)
Point Type	Sharp Gimlet Piercing Point (Wood Point)
Primary Applications	Corrugated Metal Roofing-to-Wood, Siding, Agricultural Buildings, Sheds & Residential Timber Framing

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.