We are manufacturer of stainless steel screws, compliant with ASTM F593 and ASME B18.6.3.

Welcome to StainGrip™

StainGrip, based in Jiangsu, the heart of China’s stainless steel industrial manufacturing hub, is a premier fastener manufacturer specializing in premium stainless steel and high-corrosion resistant solutions.

We provide high-performance fastening solutions, including Bi-metal self drilling screws and SS304/305/316 wood screws , engineered to meet international standards such as ASTM F593 and AS3566.1-2002.

With two decades of manufacturing excellence, we serve the North American, Australian, and European markets. Our screws are purpose-built to withstand the world's harshest coastal and industrial environments, providing "Serious Connections" where reliability is non-negotiable.

gray metal tools on white surface

A few things we’re great at

  • Bi-metal Self Drilling Screws
  • SS305 and SS316 Decking screw

  • SS410 Self Piercing Screws

  • SS304 Chipboard Screws

  • SS304 Wood and Timber Screws

  • other stainless steel screws

Stainless Steel Self Drilling Screws

Our stainless steel Roofing Screw Series is engineered to provide superior holding power and long-lasting weather protection for residential, commercial, and industrial projects. Designed to withstand the harshest environments, our range includes tip hardened Bi-metal self drilling screws for precision metal fastening and sharp Type 17 screws for effortless timber penetration.

Hex head Bi-metal self drilling screw

Featuring a high-performance fusion of a SS304/316 stainless steel body and a hardened carbon steel drill point, these Bi-metal hex head screws offer ultimate structural strength. Designed to drill through heavy metal sections with ease while providing permanent rust protection in corrosive environments, they come equipped with an EPDM bonded washer for a reliable watertight seal. These fasteners are the premium choice for industrial steel framing and high-exposure solar panel installations

Bi-metal sandwich panel self drilling screw

Specifically engineered for industrial roof and wall sandwich panel installations, these Bi-metal self-drilling screws feature an extra-long shank to fasten thick insulated panels securely to steel structures. The precision-welded hardened No. 5 tip ensures rapid penetration through heavy metal, while the 304/316 stainless steel body provides permanent durability. Integrated with a premium EPDM washer, they deliver a perfect, leak-proof seal and maintain the structural integrity of high-performance industrial building envelopes.

SS410 Type 17 Self Piercing Screw

Manufactured from high-strength, case-hardened SS410 stainless steel, these screws are specifically designed for rapid metal-to-wood roofing applications. The aggressive Type 17 slash point effectively clears debris and prevents wood splitting, while the hardened threads easily pierce through metal sheets without pre-drilling. Equipped with a heavy-duty EPDM bonded washer, these fasteners ensure a long-lasting, weatherproof seal for residential roofing and agricultural structures

Engineered for extreme durability, these hardened SS410 screws feature a multi-layer Ruspert coating, providing superior resistance for demanding metal-to-wood installations. Designed for rapid engagement into metal roofing and timber framing, the high-torque hex drive prevents slipping, while the integrated EPDM washer ensures total moisture protection. These screws are ideal for coastal construction projects where both high mechanical strength and enhanced corrosion resistance are required.

SS410 Self Piercing Screw with 1000 hour Ruspert coating

Main Products

Stainless Steel Decking Screw

Our Stainless Steel Decking Screws offer ultimate corrosion resistance for outdoor builds. Designed as a slim trim head decking screw for a clean finish, they also function as a high-grip composite decking screw that prevents material splitting. Ideal for long-lasting, professional deck installations.

Trim head Composite & PVC Decking Screws

Engineered specifically for cellular PVC and composite decking, these premium SS304/316 stainless steel screws offer ultimate rust protection in outdoor environments. The specialized dual-thread design prevents "mushrooming" on the surface, while the compact trim head provides a discreet, clean finish that disappears into the board. These fasteners ensure a durable, long-lasting hold and a professional aesthetic for all high-end composite deck installations.

Self Drilling Decking Screws

High-performance SS410 self-drilling screws, precision heat-treated for superior hardness to penetrate heavy-duty metal joists and dense hardwoods without pre-drilling. Combining the structural strength of hardened 410 stainless steel with a premium Ruspert coating for enhanced corrosion resistance, these fasteners are designed for heavy-duty structural use. They provide an exceptionally strong, reliable grip for the most demanding outdoor construction and metal-framing applications.

Torx Drive CSK Head Decking Screws

Available in premium SS304, 305, and 316 grades, these Torx-drive screws offer industry-leading corrosion resistance for coastal environments. Featuring a sharp Type 17 point for fast timber engagement and a high-torque star drive to prevent stripping, the countersunk heads can be custom-painted to flawlessly match any deck color. These fasteners provide an elegant, flush-fitting aesthetic and long-term structural integrity for luxury timber projects and seaside boardwalks.

Crafted from premium-grade SS304, 305, or 316 stainless steel, these Square Drive Trim Head screws provide ultimate natural resistance against rust and tea-staining without additional coatings. The specialized Trim Head design allows the fastener to sit perfectly flush within the timber for a low-profile finish, delivering a sleek and professional look. Ideal for luxury wooden decks, these screws combine the lasting durability of high-alloy steel with high-torque, non-slip reliability.

Square Drive Trim Head Decking Screws

Stainless Steel Wood Screws

Our Roofing Screw Series is engineered to provide superior holding power and long-lasting weather protection for residential, commercial, and industrial projects. Designed to withstand the harshest environments, our range includes tip hardened Bi-metal self drilling screws for precision metal fastening and sharp Type 17 screws for effortless timber penetration.

Stainless Steel Pozi Drive Chipboard Screws

Available in high-grade SS304 and 316 stainless steel, these Pozi drive wood screws feature a sharp Type 17 point for fast, split-free penetration into timber. Paired with premium EPDM washers for a superior watertight seal, the Pozi drive system allows for increased torque without slipping while protecting against leaks. Ideal for outdoor cladding, these fasteners provide long-lasting corrosion resistance and structural integrity for any project exposed to high moisture or coastal conditions.

Stainless Steel Torx Truss Head Wood Screw

Crafted from premium SS304 or 316 stainless steel, these Torx (Star) drive truss head screws feature a wide, low-profile head that provides a large bearing surface for maximum pull-through resistance. The high-torque Torx drive ensures a secure, wobble-free installation into timber structures without stripping the head. Perfect for securing brackets or thin materials to wood, these screws offer exceptional durability and a sleek, professional finish for all outdoor construction needs

Stainless Steel Phillips Pan Head Wood Screws

Manufactured from marine-grade SS304 or 316 stainless steel, these Phillips pan head screws are engineered for versatile timber applications where a raised, decorative head is preferred. The deep Phillips drive provides reliable engagement for standard tools, while the rounded head sits cleanly on the surface of the material. These fasteners deliver excellent shear strength and natural rust protection, making them the preferred choice for marine hardware and high-end exterior carpentry projects

Engineered for a clean, flush finish, these Torx drive flat head wood screws are available in SS304, 305, or 316 stainless steel to ensure maximum resistance against corrosion. The high-precision thread design allows for smooth engagement into timber, while the countersunk head with specialized ribs seats perfectly within the wood surface for a snag-free result. These fasteners combine high-torque star drive reliability with a professional aesthetic finish, ideal for luxury decking and cabinetry.

Stainless Steel Torx Flat Head Wood Screw

Professional Manufacturing for Stainless Steel Screws

About Us

As a leading manufacturer with over 15 years of experience, we specialize in high-quality stainless steel screws and high corrosion resistant fasteners. Our ISO 9001-certified factory is equipped with advanced cold-heading, thread-rolling and tip forming machines to ensure every batch meets rigorous international standards. From standard fasteners to custom OEM solutions, we deliver reliability in every thread.

Why Choose Us

Frequently asked questions

What types of stainless screws do you manufacture?

We specialize 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 manufacturer?

StainGrip is a direct manufacturer specialized in stainless steel fasteners. Unlike trading companies, 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. This includes 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, making it ideal for high-volume decking installations. Grade 316 offers maximum protection in marine or high-chloride environments. StainGrip provides all three grades to match your specific project requirements.

Can StainGrip provide customized head types or coatings for high-corrosion environments?

Absolutely. We offer a variety of head types (such as Torx, Hex, and Square) and can apply specialized anti-corrosion coatings to enhance the lifespan of our fasteners in extreme environmental conditions.

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 your project timelines are met.

Contact us

Ready to discuss your stainless steel screws requirements? Our team is here to help with product selection, pricing, and technical support. Contact us today for a fast quote and professional support.