Engineering Excellence in M8×20 Composite Fastening Systems
Engineering Excellence in M8×20 Composite Fastening Systems
Precision Solutions for Industrial Applications
The M8×20 screw assembly (P/N 1081111152) represents a sophisticated fastening solution where three precision components synergize for maximum performance:
Spring Washer: Provides dynamic tension retention through its helical design, compensating for thermal expansion/contraction cycles
Flat Washer: Distributes clamping force across 40% greater surface area than standard washers
Cross-Recessed Outer Hex Screw: Combines Phillips drive convenience with hex-wrench torque capabilities (15-20 Nm optimal)
Material Science & Manufacturing
Manufactured from Grade 8.8 carbon steel with 5-8μm zinc-nickel coating, this assembly achieves:
Salt spray resistance: 500+ hours (ASTM B117)
Tensile strength: 800 MPa min
Torque-to-yield ratio: 0.85 (superior to ISO 898-1 standards)
Critical Applications Performance
| Industry | Function | Failure Prevention |
|---|---|---|
| Electrical | Panel grounding connections | Prevents arcing via uniform pressure |
| Renewable Energy | Solar tracker joints | Vibration resistance @ 25G force |
| Robotics | Arm actuator assemblies | Maintains precision after 10⁶ cycles |
| Marine | Deck hardware mounting | Corrosion resistance in salt fog |
Quality Assurance Protocol
100% magnetic particle inspection
Automated thread gauging (pitch accuracy ±0.01mm)
Vibration testing: 50Hz-2000Hz sweep (MIL-STD-810H)
Batch traceability via laser etching
