PP Slotted pan head screw
PP Slotted pan head screw has a specific gravity of 0.9, which is the lightest among plastics; it has excellent mechanical properties, good chemical stability; excellent electrical properties, and is resistant to high-frequency electrical insulation.
M Size: M3-M12
peek plastic material: PP Polypropylene
product type: Pan head bolts
color: Natural/Black/Other Colors(Customizable)
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PP Slotted pan head screw Overview
PP (Polypropylene) Slotted Pan Head Screw is a highly versatile and economical plastic screw primarily known for its exceptional chemical resistance to a wide range of acids, bases, and organic solvents. The Pan Head design provides a wide bearing surface for effective clamping, and the Slotted Drive allows for simple, conventional installation using basic tools.
I. Overview and Design
| Feature | Detail | Purpose |
| Material (PP) | Polypropylene. A semicrystalline thermoplastic known for its rigidity, toughness, and superior chemical resistance. | Provides a cost-effective fastener that is immune to rust, corrosion, and many aggressive chemicals. |
| Head Style (Pan Head) | Features a gently rounded top and vertical sides, maximizing the bearing surface for strong clamping and pull-through resistance. |
Product Parameters
PP Slotted Pan Head Screws typically follow metric standards for slotted pan head screws, such as ISO 1580 or similar industry specifications.
| Nominal Diameter (d) | Thread Pitch (P) | Head Diameter (D) | Head Height (K) | Slot Width (N) |
| M3 | 0.5 mm | 6.0 mm | 2.0 mm | 0.8 mm |
| M4 | 0.7 mm | 8.0 mm | 2.6 mm | 1.0 mm |
| M5 | 0.8 mm | 9.5 mm | 3.3 mm | 1.2 mm |
| M6 | 1.0 mm | 11.0 mm | 3.9 mm | 1.6 mm |
| M8 | 1.25 mm | 14.0 mm | 5.2 mm | 2.0 mm |
| M10 | 1.5 mm | 17.0 mm | 6.0 mm | 2.5 mm |
Key Features
PP fasteners are defined by their combination of broad chemical resistance and cost efficiency:
Excellent Chemical Resistance: Superior resistance to a vast range of inorganic and organic chemicals, acids, and alkalis, often exceeding Nylon.
Corrosion Immunity: Will not rust or cause galvanic corrosion, lasting indefinitely in wet or chemical atmospheres.
Cost-Effective: One of the most economical corrosion-resistant fasteners available, suitable for high-volume use.
Non-Conductive: Provides reliable electrical insulation.
Wide Bearing Surface: The Pan Head offers good pull-through resistance, beneficial for securing softer substrates.
Key Polypropylene (PP) Properties
Applications
PP Slotted Pan Head Screws are commonly used in applications prioritizing chemical resistance and budget over high mechanical strength or high temperature:
Chemical Processing: Securing covers, guards, and non-structural supports in systems handling corrosive liquids at ambient temperatures.
Water Treatment: Fastening components in water purification, deionization, and pool systems where exposure to chlorine and other chemicals is common.
Laboratory Equipment: Assembling non-critical fixtures, racks, and enclosures in damp or chemical lab environments.
Plumbing and HVAC: Used in ventilation and drainage systems where resistance to moisture and cleaning agents is required.
Advantages
| Category | Advantage (Pro) | Disadvantage (Con) |
| Performance | Superior chemical resistance to a broad range of substances. Highly economical. | Low Mechanical Strength: Cannot withstand high tensile or shear loads; threads are easily stripped. |
| Material | Lightweight, non-contaminating, and non-corrosive. | Low Temperature Limit: Maximum continuous service temperature is typically low (80°C). |
| Design | Pan Head provides superior load distribution. | Slotted Drive Limitation: Provides low torque transmission and is prone to tool slip (cam-out). |
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.