Precote® Top 300 Reduces Thread-Forming Torque and Improves Assembly Consistency
Precote® Top 300 is a wax-based coating developed for thread-forming screws. It helps lower thread-forming values during assembly, reduces the risk of stick-slip and galling, and enables higher clamp loads at similar tightening torque levels. The coating is designed for partial application on the thread-forming area and is especially useful in high-volume assembly environments where repeatable installation behavior matters.
Precote® Top 300 helps manufacturers improve thread-forming screw performance with a dry, wax-based coating that supports lower forming values, reduced galling, and more consistent clamp load results.
What Is precote® Top 300?
Precote® Top 300 is a pre-applied coating for thread-forming screws. The coating is based on wax and is used to reduce friction-related assembly challenges during the thread-forming process. By lowering thread-forming values, precote® Top 300 can help improve installation consistency, reduce the risk of galling, and support higher clamp loads when tightening torque remains the same.
Key Benefits
- Reduces thread-forming values during assembly
- Helps prevent stick-slip and galling
- Supports higher clamp loads with equal tightening torque
- Provides consistent installation properties for repeatable production outcomes
- Offers temporary corrosion protection
- Designed for partial coating on the thread-forming area
- Meets VDA coefficient of friction requirements
- Can be applied to metallic and non-metallic surfaces
- Non-hazardous product profile
- Contains a UV marker to support inspection
Where precote® Top 300 Is Used
| Application Area | Typical Use |
|---|---|
| Thread-forming screws | Partial coating on the thread-forming area to support lower forming torque and more consistent installation behavior. |
| High-volume assembly | Serial production environments where repeatable torque, clamp load, and installation consistency are important. |
| Automotive and e-mobility applications | Thread-forming fasteners used in assemblies requiring controlled installation behavior and reduced galling risk. |
| Electronics, household appliances, office machines, computer industry, electric motors, and two-wheel applications | Production assemblies where thread-forming screws are used and clean, consistent installation performance is required. |
Technical Highlights
| Property | precote® Top 300 Detail |
|---|---|
| Chemical type | Wax |
| Color | Yellow; special colors may be available depending on requirements |
| Thread friction value | 0.09–0.15, depending on dilution |
| Thread-forming value | < 20 Nm, based on Ford WSS-M21P27A4 example conditions |
| Application method | Partial coating on the thread-forming area |
| Dilution guidance | Depending on thread size, processed with a maximum dilution of 1 part water |
| Storage stability of coated threads | Up to 4 years at max. 30°C and max. 65% relative humidity, when packaging instructions are followed |
Why Source precote® Top 300 Through Forest City Technologies?
Forest City Technologies supports manufacturers with fastener coating expertise, production application capability, and technical guidance for demanding assembly environments. For customers evaluating precote® Top 300, Forest City Technologies can help align the coating approach to the fastener type, thread geometry, forming conditions, assembly requirements, and production volume. This helps position Forest City Technologies not only as a coating source, but as an engineered solutions partner for improving fastener performance and assembly reliability.
