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PPS/BT ｜ PPS Hexagon Head Bolt for High-Clamping-Force Engineering Environments
🌟 Key Takeaways
- PPS/BT is a hexagon head bolt manufactured from 40% glass-fiber-reinforced PPS
- Supports continuous operating temperatures up to 200°C and complies with UL94 V-0
- Head dimensions (B × H) are specifically engineered for PPS to safely withstand tightening torque
- Electrically insulating, non-magnetic, and chemical-resistant, suitable for industrial and structural applications
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In machinery, automotive systems, and industrial equipment, fastening points are often subjected to tensile loads, vibration, and sustained high temperatures.
When metal bolts are used, issues such as corrosion, electrical conductivity, or unnecessary heat transfer may occur.
PPS/BT was developed as an alternative to metal bolts for applications requiring high clamping force combined with electrical safety and long-term durability.
PPS/BT is a hexagon head bolt designed for use with wrenches or sockets.
The hexagonal head enables efficient and uniform torque transmission, reducing the risk of slippage or head deformation.
The bolt is manufactured from 40% glass-fiber-reinforced Polyphenylene Sulfide (PPS), providing high mechanical strength, low moisture absorption, and excellent dimensional stability even under elevated temperatures.
These characteristics make PPS/BT suitable for structural fastening in demanding engineering environments.
🔷 Thread Pitch (Metric Coarse)
PPS/BT uses standard metric coarse threads, allowing easy compatibility with nuts and components within the same system.
- M4 = 0.70 mm
- M5 = 0.80 mm
- M6 = 1.00 mm
- M8 = 1.25 mm
- M10 = 1.50 mm
- M12 = 1.75 mm
For certain sizes, both fully threaded and partially threaded versions are available, depending on the specified bolt length (L) in the catalog.
🔷 Head Dimensions (Hexagon Head : B × H)
The head dimensions of PPS/BT are specifically designed to match the mechanical characteristics of PPS.
- M4: 7 × 2.8 mm
- M5: 8 × 3.5 mm
- M6: 10 × 4.0 mm
- M8: 13 × 5.5 mm
- M10: 17 × 7.0 mm
- M12: 19 × 8.0 mm
The proportions of B (Across Flats) and H (Head Height) ensure stable torque transmission, reduce the risk of head deformation, and support repeated tightening during maintenance operations.
🔷 Engineering Advantages
- Supports higher tightening and clamping forces than Phillips-type screws
- Continuous heat resistance up to 200°C (392°F)
- Flame-retardant rating UL94 V-0
- Electrically insulating and non-magnetic
- Lighter than metal bolts, reducing structural load
- Resistant to corrosion and chemical exposure
🔷 Typical Applications
PPS/BT is suitable for machine frames, automotive modules, high-voltage electrical equipment, components near heat sources, and assemblies requiring high clamping force without electrical conductivity.
📘 Summary
PPS/BT is a hexagon head bolt designed for technical applications requiring high clamping force, heat resistance, and electrical safety.
It is well suited for industrial and structural systems where fastening stability directly affects overall system performance.
For further details, please contact the sales department or download the relevant technical documentation through the designated channels.
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❓ FAQ
Q1: Can PPS/BT be used as a replacement for metal bolts?
A1: Yes, for applications where loads are within specification and reduced weight, electrical insulation, and corrosion resistance are required.
Q2: Why do PPS/BT head dimensions differ from metal bolts?
A2: The head dimensions are optimized to match the mechanical properties of PPS, ensuring safe torque transmission.
Q3: What temperature range does PPS/BT support?
A3: PPS/BT supports continuous operating temperatures up to 200°C.
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📚 Glossary
- PPS (Polyphenylene Sulfide): An engineering plastic used for bolt manufacturing, reinforced with 40% glass fiber
- Hexagon Head Bolt: A bolt with a hexagonal head designed for high torque transmission
- UL94 V-0: Flame-retardancy standard for materials (detailed specifications not provided)
📖 Reference
[1] Latest General Catalog 2024- – Nippon Chemical Screw Co., Ltd. –
🔒 Trust
All information in this article has been reviewed and validated by the Engineering Department of Nippon Chemical Screw Co., Ltd. to ensure technical accuracy.
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📆 Updated: 2026-01-06
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Measuring machinery / Industrial machinery / Medical equipment
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Plastic Screw / Resin Screw / Plastic Spring / Resin Spring / Resin Molded Product
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Nippon Chemical Screw Co., Ltd. specializes in the development and production of plastic fasteners made from high-performance resins. Our products are designed for environments that demand insulation, ...
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