Custom Plastic Dowel Pins External Thread Dowel Pins 3 8 Cabinet Bookcase Furniture

Descrizione

What Are Plastic Dowel Pins?

Plastic dowel pins are lightweight, non-metallic alignment fasteners designed for precise component positioning in applications requiring electrical insulation, corrosion resistance, or weight reduction. They eliminate galvanic corrosion risks and are ideal for sensitive environments where metal pins are unsuitable.

Plastic Dowel Pins: Specifications

1. Material

• Nylon (PA6/PA66): High strength, chemical resistance (e.g., automotive).

• POM (Acetal): Low friction, dimensional stability (gears/bearings).

• PTFE (Teflon®): Non-stick, high-temperature tolerance (up to 260°C).

• PEEK: Ultra-high performance for aerospace/medical.

2. Surface Treatment

• Smooth Polish: Reduced insertion force.

• Glass-Filled Reinforcement: 30% stiffer than standard plastics.

• Conductive Coating (Optional): For ESD-sensitive electronics.

3. Common Specifications

• Diameter: 1mm–25mm (0.04″–1″).

• Length: 5mm–100mm (customizable).

• Tolerance: ±0.05mm (tight-tolerance grades available).

• Standards: ISO 9001, FDA-compliant (for food/medical).

4. Applications

• Elettronica: PCB alignment in non-conductive enclosures.

• Medical: MRI-compatible device assembly.

• Food Processing: Hygienic equipment with frequent washdowns.

• Automotive: Battery tray alignment (no metal-ion contamination).

Excellent Case: Solar Panel Mounting System

Challenge:
A solar farm needed to align polycarbonate panel frames without creating thermal bridges or inducing stress cracks from metal-fastener expansion.

Solution:

• Used glass-filled POM dowel pins (Ø12mm):

  • Thermal Isolation: CTE matched polycarbonate, eliminating stress fractures.

  • UV Resistance: Withstood 10+ years of outdoor exposure.

  • Quick Installation: 50% faster vs. metal pins (no corrosion checks).

Results:

• Reduced panel microcracks by 95%.

• Cut maintenance costs by 60% over 5 years.

• Achieved IEC 61730 solar module safety certification.

Key Advantages

✔ No Corrosion – Perfect for humid/chemical environments.
✔ Weight Savings – 75% lighter than stainless steel.
✔ Custom Colors – For visual QA or brand alignment.