Hexagon Hex Socket Countersunk Screw Flat Head Allen Bolts M3 M4 M5 304 Stainless Steel DIN7991
Size:M3*8mm
Quantity:
Hexagon Hex Socket Countersunk Screws (M3/M4/M5)
🔧 Key Specifications
- Standard: DIN7991 Compliant
- Material: 304 Stainless Steel
- Drive Type: Hex Socket (Allen Key)
- Head Style: Flat Countersunk
- Available Sizes: M3 × 6mm-50mm | M4 × 8mm-60mm | M5 × 10mm-80mm
⭐ Product Highlights
Precision Engineered Design
Manufactured to DIN7991 specifications for exact dimensional accuracy and load-bearing reliability in mechanical assemblies.
Flush Surface Integration
130° countersunk angle creates seamless surface alignment for automotive trim, aerospace panels, and furniture installations.
Corrosion-Resistant Construction
304 stainless steel provides:
- Saltwater corrosion resistance (3,000+ hours salt spray tested)
- Temperature range: -150°C to 800°C
- HRC 28-32 hardness rating
Torque Optimization
Hex socket design enables:
- 25% higher torque capacity vs Phillips drives
- Reduced cam-out risk
- DIN 911 compliant hex key compatibility
⚙️ Technical Specifications
| Property | M3 | M4 | M5 |
|---|---|---|---|
| Thread Pitch | 0.5mm | 0.7mm | 0.8mm |
| Head Diameter | 5.7mm | 7.6mm | 9.5mm |
| Torque Capacity | 1.2Nm | 2.5Nm | 5.0Nm |