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Help CenterStainless Steel 316 Pozi Chipboard Screws White Zinc Plated Double Countersunk Full Thread Full Sizes High Torque Free Samples
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Welcome to Hefei SENOTECH New Materials Co., Ltd – your trusted partner in premium fastening solutions. As a dynamic trading company established in 2020 with an annual export value of US$1 million to US$1.5 million, we serve clients across North America, South America, Europe, Asia, Africa, and Oceania. Our Stainless Steel 316 Pozi Chipboard Screws White Zinc Plated Double Countersunk Full Thread represent the pinnacle of quality and engineering for demanding woodworking applications. These screws are meticulously manufactured to deliver exceptional holding power, corrosion resistance, and ease of installation, making them the ideal choice for furniture, cabinetry, and construction projects. We are proud to offer free samples to let you experience the difference firsthand – no strings attached.
This product combines the robustness of Stainless Steel 316 with a white zinc plating, ensuring outstanding protection against rust and environmental factors even in humid or outdoor environments. The double countersunk head enables flush seating in wood surfaces, while the Pozi (Pozidriv) drive reduces cam-out and provides superior torque transfer. Each screw features full thread coverage along the shank for maximum grip, and the entire range is available in full sizes to accommodate various thicknesses. Below you will find detailed technical specifications, core advantages, and answers to common questions.
Key Technical Specifications
| Property | Details |
|---|---|
| Material | Stainless Steel 316 (AISI 316) |
| Surface Treatment | White Zinc Plated (Trivalent passivation) |
| Drive Type | Pozi (Pozidriv) – No.2 & No.3 options |
| Head Style | Double Countersunk (flat 90°) |
| Thread Coverage | Full Thread (thread extends to the head) |
| Diameter Range | M3, M3.5, M4, M5, M6, M8 (customizable) |
| Length Range | 12 mm – 100 mm (custom lengths available) |
| Hardness | ≥ HV 500 (core hardness) |
| Corrosion Resistance | Pass 72h neutral salt spray test (NSS) |
Product Features & Benefits
- Superior Corrosion Resistance: Stainless Steel 316 combined with white zinc plating offers exceptional durability in moist, coastal, and chemical environments. Suitable for outdoor furniture, marine joinery, and industrial wood structures.
- High Torque Transfer: The Pozi drive design features deeper recesses and improved engagement compared to Phillips, reducing cam-out and enabling higher driving torque without stripping. Ideal for high-speed power tools.
- Double Countersunk Head: The precisely machined 90° countersunk profile ensures the screw sits flush with the wood surface, providing a clean, professional finish. Perfect for visible applications where aesthetics matter.
- Full Thread for Maximum Grip: Threads extend the entire length of the screw, maximizing pull-out resistance and reducing the risk of splitting in chipboard, particle board, and softwoods.
- Full Size Availability: We stock a comprehensive range of diameters and lengths to meet diverse project requirements. Custom sizes are also available upon request.
- Free Samples: Test the quality before committing to bulk orders. Request free samples with no cost or obligation – experience the performance firsthand.
Why Choose Hefei SENOTECH?
Since our founding in 2020, Hefei SENOTECH has built a reputation for reliability and quality across global markets. Our annual export value of US$1 million to US$1.5 million reflects the trust our clients place in us. We source and supply fasteners that meet rigorous industrial standards, and every batch undergoes strict inspection before shipment. With a dedicated team and flexible logistics, we ensure short lead times and competitive pricing. Whether you are a distributor, manufacturer, or contractor, we are committed to being your long-term partner for precision fasteners. Contact us today to request your free samples or discuss custom specifications – let SENOTECH help you fasten with confidence.
Frequently Asked Questions (FAQ)
-
What makes Stainless Steel 316 better than 304 for these screws?
316 contains molybdenum, offering enhanced resistance to chlorides and harsh environments. It is preferred for marine, coastal, and chemical-exposed applications. -
Why is a double countersunk head used?
The double countersunk design (also called 'double undercut') provides a flatter seating angle and allows the screw to sit completely flush or slightly below the surface, especially in thin or soft materials. -
Can these screws be used with a regular Phillips driver?
While Pozi bits are recommended to avoid damage, a Phillips driver can work in a pinch. However, cam-out is more likely. For best performance, use a matching Pozi bit (#2 or #3). -
Are free samples really free? Do I need to pay shipping?
Yes, we offer free samples with no charge for the product itself. Shipping costs are generally covered by the customer, but we can arrange consolidated shipments for larger orders. -
What sizes are available in standard stock?
Standard stock includes diameters M3, M3.5, M4, M5, M6, M8 and lengths from 12mm to 100mm. We also provide custom sizes based on order quantity. Please inquire for details. -
Do these screws have any certification or compliance?
Our products comply with common international fastener standards (DIN/ISO). Specific certifications such as CE or RoHS can be provided upon request – please contact our sales team. -
How does the white zinc plating affect performance?
White zinc plating (trivalent) provides a bright, corrosion-resistant layer that improves lubricity and reduces friction during driving. It is environmentally friendly and meets modern RoHS requirements. -
What is the minimum order quantity (MOQ)?
MOQ varies by size. Typically, 1,000 to 5,000 pieces per size. For free samples, there is no MOQ – just request what you need.
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