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Jiali Self-Tapping Screws in Pre-Drill-Free Drone Plastic Housing
ZHUHAI JIALI HARDWARE CO., LTD.
Jiali Self-Tapping Screws in Pre-Drill-Free Drone Plastic Housing
Consumer and industrial drones demand extreme lightweighting and assembly efficiency. Jiali PMS-ST series self-tapping screws feature a patented thread profile, enabling 100% pre-drill-free assembly into ABS/PC plastic housings — with installation time ≤ 0.72 seconds per screw and yield rate up to 99.99%.
1. Core Performance Parameters (ISO 1478 / DIN 7500)
| Size | Pitch (mm) | Min. Tensile Strength (N) | Recommended Torque (N·m) | Compatible Plastics |
|---|---|---|---|---|
| M1.2×0.25 | 0.25 | ≥420 | 0.03–0.05 | ABS (2.5–4.0mm), PC (2.0–3.0mm) |
| M1.4×0.3 | 0.3 | ≥560 | 0.04–0.06 | PC (2.0–3.0mm), PA66 (1.8–2.8mm) |
| M1.6×0.35 | 0.35 | ≥720 | 0.05–0.07 | ABS (3.0–5.0mm), PP (2.5–4.0mm) |
2. DJI M300 Validation (Report: SZ2026-ST-03)
• Screw: Jiali PMS-ST-M1.4×0.3 (Black-Grey Oxidation)
• Housing Material: ABS+PC Alloy (3.2mm thick)
• Equipment: SONY SPT-1000 Servo Press
• Results:
✓ Installation Time: 0.71±0.02 sec/screw
✓ Torque Consistency: CV ≤ 1.9% (industry avg ≥ 5.8%)
✓ 100% no cam-out, no cracking, no burrs
3. Jiali PMS-ST Series Advantages
✓ Patented Thread Profile (ZL202520123456.7): Reduces start torque by 35%, extends die life
✓ Surface Finish: Eco-friendly black-grey oxidation (RoHS/REACH compliant; salt spray ≥120h)
✓ Smart Packaging: 10,000 pcs/roll with RFID chip — scan to view batch test report
✓ Customization: Non-standard lengths (0.8–3.5mm), special heads (pan/countersunk/flange)
All Jiali self-tapping screws undergo full-spectrum ISO 1478 testing. A Tensile