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China Countersunk Head Screws Manufacturer, Supplier, Factory
Countersunk Head Screws: The Ideal Fastener for Flush, Professional Finishes
When it comes to securing components with a clean, flush surface finish, countersunk head screws are the preferred choice across countless industries. Their unique conical head design allows them to sit perfectly flush within a countersunk hole, eliminating any protruding edges that could interfere with mechanical function or aesthetics. This makes them indispensable for applications in woodworking, metal fabrication, automotive assembly, and aerospace engineering, where a smooth surface is paramount. The versatility of these screws is further enhanced by the various drive types available. While we focus on the standard countersunk design, it's worth noting that specific drive styles, such as Slotted Screws, offer distinct advantages for certain applications, providing options for different torque requirements and tool compatibility. The primary advantage of using a countersunk head screw is its ability to distribute stress more evenly and provide a secure, tamper-resistant fit once installed.
Detailed Specifications for Our Countersunk Head Screws
Our Countersunk Head Screws are engineered to the highest standards, ensuring reliability and performance in the most demanding environments. Below are the detailed parameters that define our product range.
Key Parameters List:
- Head Style: Countersunk (82° standard included angle)
- Drive Types: Phillips, Pozidriv, Slotted, Hex Socket
- Material Grades: Stainless Steel (A2/A4), Carbon Steel (Grade 4.8, 8.8, 10.9), Alloy Steel
- Surface Finishes: Zinc Plated, Black Oxide, Passivated, Plain
- Standards: DIN 7991, ISO 10642, ANSI/ASME B18.6.3
- Thread Types: Metric Coarse, Metric Fine, UNC, UNF
Dimensional Data Table:
| Nominal Size (Diameter x Length) | Head Diameter (mm) | Head Height (mm) | Drive Size | Typical Tensile Strength (MPa) |
|---|---|---|---|---|
| M3 x 10 | 5.7 | 1.8 | PH1 / Slotted 4.5 | 500 (4.8 Grade) |
| M4 x 12 | 7.6 | 2.2 | PH2 / Slotted 5.5 | 700 (8.8 Grade) |
| M5 x 16 | 9.5 | 2.7 | PH2 / Slotted 6.0 | 800 (8.8 Grade) |
| M6 x 20 | 11.5 | 3.2 | PH3 / Slotted 8.0 | 1000 (10.9 Grade) |
| M8 x 25 | 15.0 | 4.0 | PH3 / Hex Socket 6 | 1000 (10.9 Grade) |
| M10 x 30 | 18.0 | 5.0 | PH4 / Hex Socket 8 | 1040 (A2 Stainless) |
These Countersunk Head Screws are designed to provide optimal performance, whether for light-duty electronic enclosures or heavy-duty structural applications. The combination of precise dimensional tolerances and high-strength materials ensures a long service life and consistent clamping force.
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