PP Slotted cheese head screw
PP Slotted cheese 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: M2-M12
peek plastic material: PP Polypropylene
product type: Cylinder head bolts
color: Natural/Black/Other Colors(Customizable)
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Slotted cheese head screw Overview
PP (Polypropylene) Slotted Cheese Head Screw is a rigid, economical plastic screw primarily known for its exceptional chemical resistance to a wide array of acids, bases, and organic solvents. The Cheese Head (Cylindrical Head) design provides maximum material volume in the head for good shear strength, while the Slotted Drive allows for conventional installation.
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 (Cheese/Cylindrical Head) | A tall, cylindrical head with a large diameter. | Maximizes the head’s material volume and contact surface, offering good shear strength and resistance to lateral forces for a polymer. |
| Drive Style (Slotted) | A simple single slot on the top surface. | Allows for easy installation and removal using a flat-blade screwdriver; suitable for low-torque applications. |
Product Parameters
PP Slotted Cheese Head Screws typically follow metric standards for slotted cheese head screws, such as ISO 1207 (Slotted Cheese Head Screws) or similar industry specifications.
| Nominal Diameter (d) | Thread Pitch (P) | Head Diameter (D) | Head Height (K) | Slot Width (N) |
| M3 | 0.5 mm | 5.5 mm | 2.4 mm | 0.8 mm |
| M4 | 0.7 mm | 7.0 mm | 3.2 mm | 1.0 mm |
| M5 | 0.8 mm | 8.5 mm | 4.0 mm | 1.2 mm |
| M6 | 1.0 mm | 10.0 mm | 5.0 mm | 1.6 mm |
| M8 | 1.25 mm | 13.0 mm | 6.0 mm | 2.0 mm |
| M10 | 1.5 mm | 16.0 mm | 8.0 mm | 2.5 mm |
Key Features
PP Slotted Cheese Head Screws are primarily defined by their chemical resistance and head structure:
Excellent Chemical Resistance: Offers superior resistance to a vast range of inorganic and organic chemicals, acids, and alkalis.
Good Shear Strength: The Cheese Head design provides a solid material cross-section, resisting lateral forces well for a polymer.
Corrosion Immunity: Will not rust or cause galvanic corrosion, lasting indefinitely in chemical or wet atmospheres.
Cost-Effective: One of the most economical corrosion-resistant fasteners available.
Non-Conductive: Provides reliable electrical insulation.
Key Polypropylene (PP) Properties
Applications
PP Slotted Cheese Head Screws are commonly used in applications prioritizing chemical resistance and budget over high mechanical strength or high temperature:
Chemical Processing: Fastening access covers, guides, and non-structural supports in pipe systems and equipment handling corrosive liquids at ambient temperatures.
Water Treatment: Securing components in water purification, deionization, and pool systems.
Laboratory Equipment: Assembling non-critical fixtures, racks, and enclosures in damp or chemical lab environments.
Plumbing and Ventilation: Used in ductwork 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. High rigidity and cost-effectiveness. | Low Mechanical Strength: Cannot withstand high tensile loads; easily stripped if over-torqued. |
| Material | Lightweight, non-contaminating, and non-corrosive. | Low Temperature Limit: Maximum continuous service temperature is typically low (80°C). |
| Design | Robust Cheese Head geometry. | 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.