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Help CenterFactory Direct C1022A Pozi Chipboard Screws Yellow Zinc Plated Half Thread Double Countersunk Full Sizes High Hardness
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Hefei SENOTECH New Materials Co., Ltd is proud to introduce our Factory Direct C1022A Pozi Chipboard Screws Yellow Zinc Plated Half Thread Double Countersunk Full Sizes High Hardness. As a trading company established in 2020 with an annual export value of US$1-1.5 million, we serve clients across North America, South America, Europe, Asia, Africa, and Oceania. These screws are designed for demanding woodworking applications, combining high hardness, superior corrosion resistance, and efficient installation. Our factory-direct supply ensures competitive pricing without compromising on quality, making them ideal for bulk purchasing and industrial use.
Key Features & Technical Specifications
- Material: Made from C1022A carbon steel, heat-treated to achieve high hardness (≥HV 450), ensuring excellent holding power and resistance to stripping.
- Surface Treatment: Yellow zinc plated for enhanced corrosion resistance and a bright appearance, suitable for indoor and outdoor use.
- Thread Design: Half thread configuration reduces driving torque while providing strong grip in the chipboard, minimizing splitting.
- Head Type: Double countersunk head allows the screw to sit flush or slightly below the surface, creating a clean finish.
- Drive Type: Pozi (PZ) drive ensures positive engagement, reducing cam-out and speeding up installation.
- Full Size Range: Available in diameters from 3.5mm to 5.0mm and lengths from 25mm to 60mm, covering common chipboard screw requirements.
| Parameter | Specification |
| Diameter Range | 3.5mm, 4.0mm, 4.5mm, 5.0mm |
| Length Range | 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 60mm |
| Thread Length | Approx. 50% of total length (half thread) |
| Head Diameter | Double countersunk – typically 6-8mm |
| Hardness (HV) | ≥450 HV (after heat treatment) |
| Corrosion Resistance | Yellow zinc – 72h neutral salt spray (NSS) test |
Advantages and Customer Benefits
- High Hardness: Reduces risk of screw breakage or deformation during installation, ensuring long-term reliability.
- Double Countersunk Head: Allows for easy countersinking without additional tools, saving time on assembly lines.
- Half Thread: Provides optimal balance between grip and driving speed; the unthreaded shank prevents over-tightening and material damage.
- Pozi Drive: Compatible with standard Pozi bits, reduces slipping, and increases torque transfer.
- Full Sizes: One-stop solution for various chipboard thicknesses, reducing inventory complexity.
- Yellow Zinc Plating: Cost-effective corrosion protection, meets common industrial standards.
Trust & Reliability
Since 2020, Hefei SENOTECH New Materials Co., Ltd has exported over US$1 million worth of fasteners annually, serving customers in more than 10 regions worldwide. Our strict quality control processes ensure each batch meets high hardness and dimensional accuracy requirements. We offer flexible packaging options (bulk, box, or custom) and support small trial orders as well as large container shipments. Contact us today to request a sample or quotation – experience factory-direct pricing and professional service.
Frequently Asked Questions (FAQ)
Q1: What is the difference between Pozi and Phillips drive?
A: Pozi (PZ) has additional cross slots that provide better grip and reduce cam-out compared to Phillips. Our screws use Pozi drive for efficient installation.
Q2: Are these screws suitable for hardwood or MDF?
A: Yes, the high hardness and half thread design work well in hardwood and MDF, but pre-drilling is recommended for very dense materials to prevent splitting.
Q3: What sizes are available in stock?
A: We offer full sizes from 3.5x25mm to 5.0x60mm. Common sizes like 4.0x40mm and 4.5x50mm are typically in stock. Custom sizes are available upon request.
Q4: How does the yellow zinc plating resist rust?
A: Yellow zinc provides a protective layer that withstands 72 hours of neutral salt spray test, making it suitable for interior applications and occasional outdoor exposure.
Q5: Can I get a sample before bulk order?
A: Yes, we offer samples for evaluation. Please contact our sales team with your requirements.
Q6: What is the minimum order quantity (MOQ)?
A: MOQ varies by size and packaging. Typically, 1000 pieces per size for stock items. For custom sizes, MOQ may be higher.
Q7: Are these screws RoHS compliant?
A: Our yellow zinc plating process is RoHS compliant. Please request a certificate if required.
Q8: How are the screws packaged for export?
A: They are packed in sturdy cartons or pallets, with inner plastic bags to prevent moisture. Custom packaging with your logo is available.
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