PPS Slotted pan head screw
PPS Slotted pan head screw are made of a hard, highly rigid material with excellent heat resistance, chemical resistance, and dimensional stability.
M Size: M2-M10
peek plastic material: Polyetherether ketone(PPS)
product type: Pan head bolts
color: Natural/Black/Other Colors(Customizable)
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PPS Slotted pan head screw Overview
PPS (Polyphenylene Sulfide) Slotted Pan Head Screw is a high-performance plastic screw designed for applications requiring exceptional chemical and thermal resistance combined with high mechanical stiffness. The Pan Head design provides a wide bearing surface, and the Slotted Drive allows for conventional installation using simple tools.
I. Overview and Design
| Feature | Detail | Purpose |
| Material (PPS) | Polyphenylene Sulfide. A semicrystalline polymer known for its high mechanical strength, high dimensional stability, and service temperature up to 220°C. | Ensures the fastener maintains structural integrity and chemical immunity in extreme operating conditions. |
| 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
PPS 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 |
Key Features
PPS fasteners are primarily selected for their combination of high stiffness and environmental performance:
High Thermal Stability: Maintains mechanical properties at continuous operating temperatures up to 220°C(500°C).
Excellent Chemical Resistance: Highly resistant to a vast range of aggressive solvents, fuels, and automotive fluids, offering near-universal chemical immunity.
High Mechanical Stiffness: Very rigid and highly resistant to creep (deformation under sustained load) at elevated temperatures.
Hydrolysis Resistance: Excellent performance in hot water and steam environments.
Non-Conductive & Non-Magnetic: Essential for electrical and sensitive instrumentation assemblies.
Key Polypropylene (PP) Properties
Applications
PPS Slotted Pan Head Screws are critical in industrial applications exposed to severe environments:
Automotive: Securing non-structural components near the engine (under the hood) where high heat, engine oil, and fuels are present.
Chemical Processing: Fastening access panels and covers on pumps, valves, and fluid transfer lines, especially at elevated temperatures.
High-Heat Electronics: Used in components subject to prolonged elevated temperatures, such as mounting internal shields or covers in power supplies.
Ovens and Sterilizers: Securing internal fixtures where exposure to heat and steam is common, requiring chemical and thermal stability.
Advantages
| Category | Advantage (Pro) | Disadvantage (Con) |
| Performance | Superior chemical and thermal resistance over standard engineering plastics (Nylon, PC). High rigidity and creep resistance. | Lower Impact Strength: More brittle than Nylon or PC; care must be taken during installation to prevent fracture. |
| Design | Pan Head provides superior pull-through resistance. Cost-effective for high-performance requirements. | Slotted Drive Limitation: Provides low torque transmission; easily cammed out or stripped if over-torqued. |
| Cost | More economical than PEEK for similar chemical and thermal resistance. | Higher cost than standard engineering plastics (Nylon, PVC). |
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.