ALLEN CSK
ALLEN CSK ISO-10642
📌 Overview
The Stainless Steel Allen Countersunk (CSK) Head Screw – ISO 10642 is a precision-engineered fastening solution designed for applications requiring a flush surface finish, high clamping force, and reliable performance.
Featuring an internal hexagon (Allen) drive and a 90° countersunk head, this screw sits flush with the mating surface, making it ideal for assemblies where aesthetics, safety, and minimal protrusion are important.
Manufactured from SS304 (A2) and SS316 (A4) stainless steel, these screws provide excellent corrosion resistance, durability, and long service life, making them suitable for industrial, marine, automotive, architectural, and engineering applications.
✅ Key Highlights
📏 Type: Allen Countersunk Head Screw (Socket Flat Head Cap Screw)
🔘 Standard: ISO 10642
⚙ Drive Type: Internal Hexagon (Allen Drive)
🔩 Head Style: 90° Countersunk (CSK) Head
⚙ Material Grades: SS304 (A2) / SS316 (A4)
💪 Strength Class: A2-70 / A4-70
🌊 Corrosion Resistance: Excellent – suitable for indoor, outdoor & marine environments
🛠 Installation: Allen Key / Hex Wrench
📦 Size Range: M3 – M20 (larger sizes available on request)
📊 Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Allen CSK Head Screw |
| Standard | ISO 10642 |
| Drive Type | Internal Hexagon (Allen) |
| Head Style | 90° Countersunk Head |
| Material | Stainless Steel SS304 / SS316 |
| Strength Class | A2-70 / A4-70 |
| Thread Type | Metric Coarse / Fine Thread |
| Surface Finish | Natural / Passivated |
| Installation Tool | Allen Key / Hex Driver |
| Mounting Style | Flush Surface Installation |
📍 Applications
✔ Machinery & industrial equipment
✔ Automotive assemblies & components
✔ Electrical panels & enclosures
✔ Furniture & modular systems
✔ Architectural & decorative installations
✔ Marine & offshore equipment (SS316 preferred)
✔ Aerospace support equipment & engineering applications
✔ Precision mechanical assemblies
🏆 Why Choose Our Stainless Steel ISO 10642 CSK Screws?
✨ Flush Surface Finish – countersunk head sits level with the surface
✨ High Torque Transmission – internal hex drive enables secure tightening
✨ Excellent Corrosion Resistance – ideal for harsh environments
✨ Professional Appearance – clean and aesthetically pleasing finish
✨ Precision Manufactured – consistent dimensions and thread quality
✨ Wide Range of Sizes – suitable for diverse engineering applications
📊 Technical Specifications
Specification Details Standard DIN 7984 Material Stainless Steel SS304 / SS316 Head Type Low Cylindrical with Hex Socket Drive Type Internal Hex (Allen) Diameter Range M3 – M36 Length Range 6mm – 120mm Thread Type Metric (Coarse / Fine) Strength Class A2-70 / A4-70 Surface Finish Natural / Polished / Passivated
| Datasheet Title | Download |
|---|---|
| MATRIC SERIES | |
| SS304 ALLEN CSK ISO-10642 R4C21 | Download |
| SS316 ALLEN CSK ISO-10642 R6C21 | Download |
| UNC SERIES | |
| SS304 ALLEN CSK ASME-B18.3-2 UNC R4C21u | Download |
| SS316 ALLEN CSK ASME-B18.3-2 UNC R6C21u | Download |
| UNF SERIES | |
| SS304 ALLEN CSK ASME-B18.3-2 UNF R4C21v | Download |
| SS316 ALLEN CSK ASME-B18.3-2 UNF R6C21v | Download |
📍 Applications
✔ Machinery & Equipment with Limited Clearance
✔ Robotics & Automation Systems
✔ Electronics & Instrumentation
✔ Automotive & Aerospace Components
✔ Marine & Offshore Installations
✔ General Engineering & Compact Fastening Solutions
🏆 Why Choose Our Stainless Steel Low Head Allen SHCS?
✨ Manufactured as per DIN 7984 international standards
✨ Low head design – ideal for tight space applications
✨ Rust & corrosion resistant – suitable for harsh environments
✨ Available in wide range of sizes (M3–M36)
✨ Perfect for precision engineering & compact assemblies
