USD 0.00 ~ USD 0.00/carton
50/ carton (Min. Order)
Engineered for zero slip under extreme torque
Our Plum Blossom Machine Screws feature a patented cruciform drive geometry that eliminates camout while delivering 35% higher torque transmission than Phillips drives. Precision-milled for critical applications in aerospace, defense, and microelectronics where fastener integrity is non-negotiable.
Revolutionary Drive System Technology
Experience unmatched fastening precision with our aerospace-grade Plum Blossom Machine Screws. The unique 4-lobe drive geometry (officially designated Torq-Set) features offset radial arms that create positive mechanical engagement, preventing driver slippage even at 250+ in-lb torque values.
Critical Performance Advantages
✓ Zero Camout Design: Asymmetric lobes physically lock bits in place
✓ Ultra-High Torque Capacity: Withstands 35% more torque than Phillips drives
✓ Vibration Resistance: Maintains clamp load under 10G vibration (MIL-STD-810H)
✓ Tamper Resistance: Specialized drive deters unauthorized disassembly
✓ Micro-Precision: ±0.005mm head tolerance for automated assembly
Technical Specifications
| Parameter | Specification |
|---|---|
| Drive Type | Plum Blossom (ASME B18.6.7) |
| Head Style | Pan Head / Flat Head / Oval Head |
| Thread Type | UNC/UNF/Metric Fine |
| Materials | 18-8 Stainless Steel • Alloy Steel A286 • Titanium Gr5 |
| Finish | Passivated • Xylan® Coating • Ni-PTFE |
| Diameter Range | M2 to M12 • #0-80 to 1/4"-20 |
| Length Range | 3mm to 100mm • 1/8" to 4" |
| Standards | NASM 25027 • DIN 7500 • ISO 14583 |
| Temp Range | -55°C to 260°C (-67°F to 500°F) |
Torque Performance Comparison
| Drive Type | Max Torque (M6 Steel) | Camout Risk |
|---|---|---|
| Plum Blossom | 250 Nm | None |
| Phillips | 185 Nm | High |
| Pozidriv | 210 Nm | Medium |
| Torx | 230 Nm | Low |
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