PVC Hexagon head bolt
PVC Hexagon head bolt has excellent acid, alkali and solvent resistance; hard texture, high mechanical strength; good insulation performance; poor thermal stability: chlorine and other harmful substances will be produced when burned.
M Size: M3-M8
peek plastic material: Polyvinylchloride(PVC )
product type: Hexagon head bolt
Finish: Natural/Black/Other Colors(Customizable)
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PVC Hexagon head bolt Overview
PVC (Polyvinyl Chloride) Hexagon Head Bolt is an economical, corrosion-resistant plastic bolt widely used in low-stress fluid handling, water treatment, and chemical processing systems. PVC is valued for its excellent resistance to most acids, alkalis, and salts at ambient temperatures, providing a cost-effective, non-corrosive alternative to metal fasteners.
I. Overview and Design
| Feature | Detail | Purpose |
| Material (PVC) | Polyvinyl Chloride. A cost-effective thermoplastic known for its rigidity and chemical resistance. | Provides a fastener that is immune to rust, corrosion, and galvanic action at a highly competitive price point. |
| Head Style (Hex Head) | Standard six-sided external head. | Allows for external wrench tightening, enabling the maximum clamping force achievable with PVC. |
Product Parameters
PVC 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 |
| M16 | 2.0 mm | 24.0 mm | 10.0 mm |
Key Features
PVC fasteners are defined by their combination of chemical resistance and high cost-efficiency:
Excellent Chemical Resistance: Highly stable against most mineral acids, bases, and salts at room temperature.
Corrosion Immunity: Completely eliminates the risk of rust and galvanic corrosion, lasting indefinitely in wet or corrosive atmospheres.
Cost-Effective: One of the most economical corrosion-resistant fasteners available, suitable for large infrastructure projects.
Non-Conductive: Provides reliable electrical insulation.
Key Polyvinyl Chloride (PVC) Properties
Applications
PVC Hexagon Head Bolts are commonly used in applications prioritizing chemical resistance and budget over high mechanical strength or high temperature:
Water Treatment and Plumbing: Securing flanges, supports, and access points in water purification, pool systems, and non-pressurized fluid lines.
Chemical Containment: Fastening components and structural elements on tanks and pipe systems handling ambient-temperature acids and bases.
Laboratory Equipment: Assembling non-critical fixtures, racks, and enclosures in damp or chemical lab environments.
Outdoor/Marine (if UV stabilized): Securing non-structural components exposed to weather and saltwater spray.
Advantages
| Category | Advantage (Pro) | Disadvantage (Con) |
| Performance | Excellent corrosion resistance against common chemicals. Highly economical. | Low Mechanical Strength: Cannot withstand high tensile or shear loads; easily stripped if over-torqued. |
| Material | Lightweight, non-contaminating, and widely available. | Low Temperature Limit: Maximum continuous service temperature is typically low (60°C or 140°C). |
| Design | Hex Head allows for controlled tightening. | Poor UV Resistance: Standard PVC is prone to degradation and becoming brittle when exposed to 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.