CSK Phillips Screws
What are CSK Phillips Screws
CSK Phillips Screws, also known as Countersunk Phillips Head Screws, feature a flat head with a Phillips (cross) drive. Designed to sit flush with the material surface, these screws are ideal for applications requiring a clean, smooth finish. The countersunk design ensures the screw head does not protrude, making it suitable for aesthetic and structural applications. The Phillips drive allows easy installation with reduced cam-out.
These screws are widely used in woodworking, cabinetry, metal fittings, automotive interiors, and electrical equipment.
Key Features
- Flush Finish – Designed to sit level with the surface for a neat appearance
- Phillips Drive – Easy installation with reduced slipping
- Material Options – Available in stainless steel, carbon steel, and alloy steel
- Corrosion-Resistant Grades – Suitable for outdoor and marine environments
- Wide Size Range – Ideal for light to heavy fastening needs
Specifications
Mechanical Properties
Chemical Composition
Equivalent Grades
Weight Chart
Specifications
| Parameter | Specification |
|---|---|
| Size Range | M2 to M20 |
| Thread Types | Metric Coarse, Metric Fine |
| Head Type | Countersunk (Flat) |
| Drive Type | Phillips Cross |
| Material Options | Stainless Steel, Carbon Steel, Alloy Steel |
| Standards | DIN 965, ISO 7046, ANSI B18.6.3 |
| Finish Available | Zinc Plated, Black Oxide, Nickel, Plain |
| Property | Value |
|---|---|
| Tensile Strength | Up to 900 MPa |
| Yield Strength | Up to 650 MPa |
| Hardness | 200 – 350 HV |
| Temp. Range | -50°C to 300°C (material-based) |
| Element | Percentage (%) |
|---|---|
| Carbon (C) | 0.20 – 0.50 |
| Manganese (Mn) | 0.30 – 1.20 |
| Silicon (Si) | 0.10 – 0.50 |
| Chromium (Cr)* | 16.00 – 18.00 (Stainless Steel Grades) |
| Nickel (Ni)* | 8.00 – 10.00 (Stainless Steel Grades) |
| Iron (Fe) | Balance |
*Applicable for stainless steel variants only.
| Standard | Equivalent Grade |
|---|---|
| ASTM | A276 (SS), AISI 304/316 |
| DIN | 965 |
| ISO | 7046 |
| BS | 4183 |
| JIS | B1111 |
| Screw Size (mm) | Length (mm) | Approx. Weight (kg/1000 pcs) |
|---|---|---|
| M4 | 10 | 1.20 |
| M5 | 12 | 2.00 |
| M6 | 16 | 3.50 |
| M8 | 20 | 6.00 |
| M10 | 25 | 9.50 |
| M12 | 30 | 14.80 |
Applications of CSK Philips Screws
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What is a CSK Phillips Screw used for?
CSK Phillips Screws are used for flush-mount fastening in applications where a smooth finish is important.
What materials are available for CSK screws?
They are available in stainless steel, carbon steel, and alloy steel with various protective finishes.
Are these suitable for outdoor use?
Yes, stainless steel and coated variants offer excellent corrosion resistance for outdoor and marine environments.
Can I get custom lengths or coatings?
Yes. Custom sizes, threads, and surface treatments are available upon request to suit specific project needs.
