Carbon Steel Cross Recessed CSK Head Screws
Product Overview
Cross Recessed CSK Head Screws are engineered for applications requiring a flush finish and strong hold. With a countersunk flat head and a Phillips (cross) drive, these screws are ideal for secure and visually clean assemblies. Made from high-quality carbon steel, they offer excellent performance in structural integrity, ease of installation, and cost-efficiency—making them a popular choice across multiple industries.
Product Specifications
| Specification | Detail |
|---|---|
| Head Type | Countersunk (Flat) Head |
| Drive Type | Cross Recessed (Phillips) |
| Material | Carbon Steel |
| Thread Type | Full Thread / Partial Thread (optional) |
| Standards | DIN 965 / ISO 7046 |
| Size Range | M2 – M10 / #4 – 3/8″ |
| Length Range | 4mm – 60mm / 3/16″ – 4″ |
| Surface Coating | Zinc Plated, Black Oxide, Nickel Plated |
Technical Parameters
| Parameter | Value |
|---|---|
| Tensile Strength | ≥ 600 MPa (Carbon Steel Grade 4.8) |
| Thread Tolerance | ISO Class 6g / ANSI 2A |
| Head Angle | 90° Standard Countersink |
| Surface Hardness | Optional up to HV 420 |
| Salt Spray Resistance | Up to 96–240 hours (depending on coating) |
Material & Production Process
Our Cross Recessed CSK Head Screws are manufactured using high-quality carbon steel, which offers a balance between strength and affordability. The production process includes:
Cold forming the screw body and head
Thread rolling to achieve accurate and uniform threads
Heat treatment to enhance mechanical properties
Surface treatment (e.g., zinc plating) for corrosion resistance
100% inspection for size, threads, and appearance
This streamlined manufacturing process ensures consistency, reliability, and fast production turnaround.
Typical Applications & Industries
These screws are widely used in environments where flush installation is required without compromising structural strength. Common applications include:
Electrical panel assemblies
Wood-to-metal or metal-to-metal installations
Automotive interior components
Appliance housings
Furniture and cabinetry
Sheet metal and control enclosures
The countersunk design enables a flat surface finish after installation, making these screws especially suitable for aesthetic and aerodynamic assemblies.
Product Advantages & Competitive Strength
Cross Recessed CSK Head Screws for Flush-Fit Installations
At Flybear, we focus on delivering precision and performance in every screw we produce.
Premium Carbon Steel: High strength and good machinability
Precision Threads: Accurate pitch and depth for reliable torque application
Advanced Surface Coating: Corrosion protection for indoor and outdoor environments
Customization Services: Sizes, threads, and coatings available per your specifications
Large Inventory: Ready-to-ship stock for standard sizes
Technical Support: Responsive service for custom project needs
Quality Control & Inspection
Our manufacturing system adheres to ISO 9001 and IATF 16949 standards. We implement strict quality control at each production stage:
Dimensional inspection
Thread gauge and torque test
Coating thickness and adhesion testing
Salt spray corrosion testing
Automated optical sorting for zero-defect delivery
Selection & Buying Guide
When sourcing Cross Recessed CSK Head Screws, you should consider:
Surface finish based on corrosion resistance requirements
Thread type and pitch compatibility with mating components
Countersink compatibility with host material
Head dimensions for design tolerance
Application torque and tensile strength demands
Custom screw designs can also be provided upon request to meet specific engineering needs.
Conclusion & Brand Commitment
We always adhere to the principle of “quality first, customer foremost,” and are committed to delivering high-quality fastener products and one-stop solutions for global industries. Backed by 20+ years of experience, Flybear Fastener is your reliable partner for precision-engineered fastening components. Feel free to contact us to learn more about our offerings and receive a tailored quote.
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