Technology / product information

In assembly and maintenance tasks involving control boxes, testing equipment, or adjustable tools, conventional hex bolts often require tools for tightening. This can lead to reduced efficiency and even finger pain during repeated manual operation.

The PC/BC Polycarbonate Bolt Cap (T-Type) offers a smart solution — it allows tool-free hand tightening while maintaining a secure fit and high safety level.
Made from durable polycarbonate (PC) resin, it provides both ease of handling and long-term reliability for frequent-use applications.


■ Key Features
- Tool-Free Tightening: Easily tightened or loosened by hand without using screwdrivers or wrenches.
- Dual Compatibility: Fits both plastic screws and metal hex bolts for flexible use.
- Complete Set: Supplied with a hex bolt cap and lock ring for immediate installation.
- Finger-Safe Design: Reduces pressure on fingertips during repetitive operation.
- Flame Retardant: UL94 V-2 equivalent for white models.
- Safety Compliant: RoHS2 certified – free from hazardous substances and heavy metals.
- Ideal for Frequent-Use Applications: Perfect for testing devices, measuring tools, and control panels that require regular adjustment.


■ Size & Specifications
- Applicable bolt sizes: M4, M5
- Standard color: Transparent
- Minimum order unit: 100 pcs

Note:
- Bolts are sold separately.
- Slight play or looseness may occur but does not affect performance or safety.


■ Typical Applications
- Adjustment and setup work for testing and measuring equipment
- Control panels and electronic devices that require frequent opening and closing
- Applicable to both plastic and metal hex bolts
- Suitable for prototyping labs, maintenance stations, and factory floor equipment


■ Why Choose Polycarbonate (PC/BC) Bolt Caps?
The PC/BC Bolt Cap not only enhances work efficiency but also ensures safer operation in assembly lines or lab environments.
Its transparent body allows easy visual inspection of the bolt condition, while its ergonomic T-type design ensures a firm grip without tools — ideal for modern industrial environments seeking speed, safety, and ergonomics.


■ About the Manufacturer
Nippon Chemical Screw Co., Ltd.
A Japanese pioneer in plastic screw and fastening component technology with over 60 years of expertise.
The company provides a full lineup of over 3,000 plastic fastener products, covering various industries from electronics to precision machinery.

> Company Highlights

- 100% Made in Japan
- Wide material lineup: PC, PEEK, PTFE, PPS, and more
- Fully integrated production system: From mold design to injection molding
- Global supply network: Serving Asia, Europe, and North America

Nippon Chemical Screw ensures the highest level of precision, safety, and environmental compliance in all its products.


For more information, please contact us below or download the brochure for further details.


Updated: 2025-10-07


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