Overview
The countersunk head screw is a specialized fastener designed to sit flush with or below the surface of the material it secures, providing a smooth and unobtrusive finish. Its distinctive conical head allows for precise countersinking, ensuring the screw head does not protrude, which is essential in applications where surface uniformity is critical. Manufactured using high-grade materials such as stainless steel, carbon steel, or alloy steel, countersunk head screws offer excellent strength, corrosion resistance, and durability. The manufacturing process involves precision threading and head shaping to meet stringent dimensional tolerances, ensuring reliable performance in various industrial settings. Key features include a tapered head angle, typically 82 or 90 degrees, and a variety of drive types such as Phillips, slotted, or Torx, allowing for versatile installation options. These screws are widely used in woodworking, metal fabrication, automotive assembly, and electronics, where secure fastening combined with aesthetic considerations is paramount.
Performance-wise, countersunk head screws provide superior load distribution and resistance to loosening under vibration, making them suitable for dynamic environments. The choice of materials and finishes, including zinc plating, black oxide, or passivation, enhances their suitability for both indoor and outdoor applications. Their design facilitates easy countersinking with standard tools, reducing installation time and improving assembly efficiency. Additionally, the countersunk head screw’s ability to create a flush surface minimizes interference with moving parts or other components, which is critical in precision machinery and structural assemblies. The combination of functional design, material quality, and manufacturing precision makes the countersunk head screw a reliable fastener solution for industries demanding both performance and aesthetic integrity in their assemblies.
| Product Type | Countersunk Head Screw |
| Head Style | Flat, Conical Countersunk Head |
| Manufacturing Process | Cold Forging or Machining |
| Thread Type | Unified National Coarse (UNC), Unified National Fine (UNF), Metric Threads |
| Common Materials | Carbon Steel, Stainless Steel, Alloy Steel, Brass |
| Available Sizes | M2 to M12 (Metric), #4 to 1/2 inch (Imperial) |
| Strength Features | High Tensile Strength Grades 8.8, 10.9, and 12.9 Available |
| Typical Applications | Flush Mounting in Wood, Metal, and Plastic Assemblies |
| Surface Finishes | Zinc Plating, Black Oxide, Passivation, Plain, Hot-Dip Galvanized |
| Standards | ISO 2009, DIN 965, ANSI B18.6.3 |
| Customization | Custom Sizes, Materials, Threads & Surface Finishes Available |
Designed to sit flush with the surface, providing a smooth and clean appearance for aesthetic and functional purposes.
Manufactured with tight thread tolerances to ensure reliable engagement and strong fastening performance.
Available in stainless steel and coated variants to withstand harsh environments and prevent rusting.
Suitable for use in wood, metal, and plastic assemblies across multiple industries.
Compatible with standard screwdrivers and power tools for efficient assembly processes.
Offered in multiple diameters and lengths to meet diverse fastening requirements.
| Product Type | Countersunk Head Screw |
| Thread Type | Metric Coarse and Fine |
| Diameter Range | M2 to M12 |
| Length Range | 6 mm to 100 mm |
| Available Materials | Stainless Steel, Carbon Steel, Alloy Steel |
| Manufacturing Standards | DIN 965, ISO 2009 |
| Surface Finish | Plain, Zinc Plated, Black Oxide |
| Diameter (mm) | Length (mm) | Head Diameter (mm) | Head Height (mm) |
|---|---|---|---|
| M2 | 6–20 | 4.0 | 1.2 |
| M4 | 8–40 | 8.0 | 2.4 |
| M6 | 10–60 | 12.0 | 3.6 |
| M8 | 12–80 | 16.0 | 4.8 |
| M10 | 16–100 | 20.0 | 6.0 |
