PC Hexagon head bolt
PC Hexagon head bolt has strong impact resistance, strong fatigue resistance, good heat aging resistance, excellent insulation performance, resistance to weak acids and weak alkalis; and is self-extinguishing.
M Size: M3-M8
peek plastic material: PC Polycarbonate
product type: Hexagon head bolt
Finish: Natural/Black/Other Colors(Customizable)
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PC Hexagon head bolt Overview
PC (Polycarbonate) Hexagon Head Bolt is a tough, high-impact plastic bolt recognized for its exceptional mechanical toughness, good temperature stability, and superior electrical insulating properties. The Hexagon Head design allows for external wrench tightening, enabling higher clamping forces for more secure structural assemblies compared to screws with simple recessed drives.
I. Overview and Design
| Feature | Detail | Purpose |
| Material (PC) | Polycarbonate. An engineering thermoplastic known for its extreme impact resistance, high strength, and clarity. | Provides a fastener that resists breakage, is non-conductive, and maintains good dimensional stability. |
| Head Style (Hex Head) | Standard six-sided external head. | Designed for maximum wrench grip, allowing for the highest, most controlled installation torque achievable with polycarbonate. |
Product Parameters
PC Hexagon Head Bolts typically follow established metric standards for hexagon head bolts, such as ISO 4014 (partially threaded) or ISO 4017 (fully threaded).
| Nominal Diameter (d) | Thread Pitch (P) | Across Flats (s) | Head Height (k) |
| M4 | 0.7 mm | 7.0 mm | 2.8 mm |
| M5 | 0.8 mm | 8.0 mm | 3.5 mm |
| M6 | 1.0 mm | 10.0 mm | 4.0 mm |
| M8 | 1.25 mm | 13.0 mm | 5.3 mm |
| M10 | 1.5 mm | 16.0 mm | 6.4 mm |
| M12 | 1.75 mm | 18.0 mm | 7.5 mm |
Key Features
Polycarbonate Hex Head Bolts are primarily selected for their balance of toughness and functional utility:
Exceptional Impact Resistance: Highly resistant to shattering or cracking, making it ideal for assemblies subject to shock or vibration.
Highest Torque for PC: The Hex Head design facilitates the strongest, most controlled tightening possible with polycarbonate material.
Good Temperature Stability: Maintains stability and mechanical integrity up to approximately $115^\circ \text{C}$.
Superior Electrical Insulation: Provides excellent dielectric properties, crucial for isolating electrical circuits.
Corrosion Immunity: Immune to rust and galvanic corrosion.
Key Polycarbonate (PC) Properties
Applications
PC Hexagon Head Bolts are vital where electrical safety, toughness, and secure fastening are required:
Electronics and Control Panels: Mounting heavy components, insulating busbars, and securing enclosures where non-conductivity and impact resistance are paramount.
Lighting and Display Fixtures: Used to assemble internal structural components in commercial lighting, utilizing its clarity, heat resistance, and non-conductivity.
Machinery Guards and Covers: Fastening machine components where a durable, non-corrosive bolt that can be easily tightened and removed with a wrench is needed.
Wet or Damp Environments: Securing access panels or fittings in areas exposed to moisture where metal corrosion would be a problem.
Advantages
| Category | Advantage (Pro) | Disadvantage (Con) |
| Performance | Superior toughness and impact resistance. Excellent electrical insulation. High torque capacity (for a polymer bolt). | Chemical Sensitivity: Attacked by strong solvents, alkalis, and aromatic hydrocarbons, leading to stress cracking. |
| Design | Hex Head provides superior wrench grip and maximum clamping force achievable with PC. | Lower High-Temperature Limit compared to high-performance polymers (PEEK). |
| Environmental | Lightweight, non-corrosive, and often transparent. | Poor UV Resistance: Prone to yellowing and embrittlement if exposed to long-term direct sunlight. |
Packaging & Delivery
Standard packaging includes PE bag, foam cover, and one double-deck corrugated outer carton for safety during transit. Delivery time is 5-15 working days depending on the quantity.