PVC Hexagon socket head screw
PVC Hexagon socket head screw 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-M12
peek plastic material: Polyvinylchloride(PVC )
product type: Hexagon socket head bolt
color: Natural/Black/Other Colors(Customizable)
Search
Product type
Get A Quote
PVC Hexagon socket head screw Overview
PVC (Polyvinyl Chloride) Hexagon Socket Head Screw is a corrosion-resistant plastic screw utilized in applications requiring chemical immunity, cost-effectiveness, and the best achievable torque capability for a PVC fastener. The Hexagon Socket (Allen drive) allows for more controlled and higher tightening forces than simple slotted drives, maximizing the secure assembly of non-metallic joints.
I. Overview and Design
| Feature | Detail | Purpose |
| Material (PVC) | Polyvinyl Chloride. A cost-effective thermoplastic known for its rigidity and superior chemical resistance to most acids and alkalis at ambient temperatures. | Provides a fastener that is immune to rust and galvanic corrosion at a low cost. |
| Head Style (Cylindrical Socket Head) | A tall, cylindrical head with a flat top. | Provides a large bearing surface and maximum shear resistance for a PVC screw. |
| Drive Style (Hexagon Socket) | The Allen drive recess. | Allows for the highest, most controlled installation torque achievable with PVC, minimizing cam-out. |
Product Parameters
PVC Hexagon Socket Head Screws typically follow metric standards for socket head cap screws, such as ISO 4762 (equivalent to DIN 912).
| Nominal Diameter (d) | Thread Pitch (P) | Head Diameter (D) | Head Height (K) | Socket Size (S) |
| M4 | 0.7 mm | 7.0 mm | 4.0 mm | 3.0 mm |
| M5 | 0.8 mm | 8.5 mm | 5.0 mm | 4.0 mm |
| M6 | 1.0 mm | 10.0 mm | 6.0 mm | 5.0 mm |
| M8 | 1.25 mm | 13.0 mm | 8.0 mm | 6.0 mm |
| M10 | 1.5 mm | 16.0 mm | 10.0 mm | 8.0 mm |
| M12 | 1.75 mm | 18.0 mm | 12.0 mm | 10.0 mm |
Key Features
PVC Hexagon Socket Head Screws are primarily selected for their chemical immunity and superior drive system compared to other PVC screw types:
Excellent Chemical Resistance: Highly stable against most mineral acids, bases, and salts at room temperature.
Corrosion Immunity: Will not rust or cause galvanic corrosion, ideal for wet environments.
Highest Torque for PVC: The Hexagon Socket drive allows for the strongest, most controlled tightening possible, optimizing the PVC’s mechanical limit.
Cost-Effective: One of the most economical corrosion-resistant fasteners available.
Non-Conductive: Provides reliable electrical insulation.
Key Polyvinyl Chloride (PVC) Properties
Applications
PVC Hexagon Socket Head Screws are commonly used where chemical resistance, cost, and a secure, tamper-resistant drive are needed:
Water Treatment and Plumbing: Securing flanges, supports, and access points in PVC piping systems and non-pressurized fluid lines.
Chemical Containment: Fastening components and structural elements on tanks and pipe systems handling ambient-temperature corrosive fluids.
Laboratory Equipment: Assembling non-critical fixtures, racks, and enclosures in damp or chemical lab environments where metal corrosion is a concern.
Electrical Equipment: Used to mount non-critical electrical components where non-conductivity is required.
Advantages
| Category | Advantage (Pro) | Disadvantage (Con) |
| Performance | Excellent corrosion resistance against common chemicals. High torque capacity (for a PVC screw). | Low Mechanical Strength: Cannot withstand high tensile/shear loads; threads are easily stripped if over-torqued. |
| Material | Highly economical, lightweight, and non-contaminating. | Low Temperature Limit: Maximum continuous service temperature is typically low (60°C). |
| Design | Socket head provides maximum shear strength and high material volume. | Poor UV Resistance: Standard PVC is prone to degradation 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.