Thermo King Nut-Speed U 1/4-20 Self-Retaining Clip 559325
Official OEM Thermo King parts catalog entry for the Thermo King Nut-Speed U 1/4-20 559325, verified by PEAK Thermo King and West Texas Thermo King Texas, Utah, Wyoming, Washington, Oregon, serving all of the USA.
Built for Performance: The Thermo King Nut-Speed U 1/4-20 559325 secures panels and access points on Thermo King refrigeration systems, providing a durable, self-retaining threaded fastening point for reefer trailers and transport refrigeration equipment.
Product Overview
The Nut-Speed U 1/4-20 559325 is a U-type speed nut designed to clip onto sheet metal panels and create a reliable 1/4-20 UNC threaded fastening point without requiring backside access. This fastener supports uptime and simplifies field service on Thermo King units, making panel removal and reinstallation faster and more precise for fleets operating across the Permian Basin and West Texas.
Key Features & Customer Benefits
- 1/4-20 UNC Thread – Accepts standard 1/4-20 fasteners for wide parts availability and consistent torque retention.
- Self-Retaining U-Clip Design – Clips onto panel edges for blind fastening, reducing installation time during roadside or shop service.
- Vibration-Resistant Engagement – Provides secure thread engagement that resists loosening on transport refrigeration and reefer trailer applications.
- OEM-Compatible Fit – Engineered to align with Thermo King panel fastener points for reliable, repeatable installation and reduced rework.
- Corrosion-Resistant Finish – Typical black phosphate or plated finish helps maintain reliability in exterior refrigeration environments.
- Serviceability – Simplifies maintenance workflows to help maximize vehicle uptime and fleet ROI in Amarillo, Lubbock, Odessa, and beyond.
Product Details
| Part Number | 559325 |
| Product Name | Nut-Speed U 1/4-20 |
| Thread Size | 1/4-20 UNC |
| Function | Self-retaining clip-on threaded nut for panel fastening |
| Typical Material/Finish | Steel with corrosion-resistant finish (typical) |
| Compatibility | Designed for Thermo King refrigeration unit panels and transport refrigeration service points |
Efficiency & Sustainability
Reliable panel fasteners like the Nut-Speed U 1/4-20 559325 contribute to lower service time and reduced vehicle downtime, supporting efficient temperature control operations. Consistent fitment minimizes rework and waste during maintenance, aiding fleets that operate Smart Reefer SR-4 monitored units and Diesel Direct Electric configurations in meeting uptime and compliance goals.
Installation & Maintenance Tips
Install by snapping the U-clip onto the panel edge and align the threaded opening with the access hole. Use the correct 1/4-20 fastener and OEM-recommended torque values. Inspect clip engagement and finish during scheduled maintenance intervals and replace if deformation is evident to preserve secure fastening and precise panel alignment.
Real-World Applications
The Nut-Speed U 1/4-20 559325 is ideal for securing service panels, access doors, and interior or exterior trim on refrigerated trucks, reefer trailers, and Thermo King refrigeration units, including common service platforms. It supports fleet operations across the Southwest where reliable temperature control and quick serviceability drive uptime.
Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
View all Thermo King PartsBacked by Thermo King’s engineering and supported by certified technicians at West Texas Thermo King, this component delivers lasting performance and uptime assurance for fleet operations.
For product verification or service assistance, call (806) 376-5837.
For current warranty eligibility or OEM replacement coverage, please contact us for warranty information or contact the service department for confirmation.
Frequently Asked Questions
Q: Is this fastener compatible with Thermo King Precedent and S-Series panels?
A: Yes. The Nut-Speed U 1/4-20 559325 fits common Thermo King panel fastening points and supports secure reinstallation across Precedent and S-series platforms when used with the correct 1/4-20 hardware.
Q: Can this clip be installed during roadside repairs?
A: Yes. The self-retaining U-clip design enables one-sided installation, making it effective for field service and minimizing downtime for refrigerated trailers and trucks.
Q: What maintenance checks are recommended?
A: Inspect clip engagement, thread integrity, and finish during scheduled service intervals. Replace any clip showing deformation or corrosion to maintain reliable panel retention.
Related Resources
Ask about fleet-wide parts programs through West Texas Thermo King.
Produced by a certified Thermo King dealership, West Texas Thermo King | a Division of PEAK Industrial. Servicing fleets across Amarillo, Lubbock, and Odessa.
Official OEM Thermo King parts catalog entry for the Thermo King Nut-Speed U 1/4-20 559325, verified by PEAK Thermo King and West Texas Thermo King Texas, Utah, Wyoming, Washington, Oregon, serving all of the USA.
Built for Performance: The Thermo King Nut-Speed U 1/4-20 559325 secures panels and access points on Thermo King refrigeration systems, providing a durable, self-retaining threaded fastening point for reefer trailers and transport refrigeration equipment.
Product Overview
The Nut-Speed U 1/4-20 559325 is a U-type speed nut designed to clip onto sheet metal panels and create a reliable 1/4-20 UNC threaded fastening point without requiring backside access. This fastener supports uptime and simplifies field service on Thermo King units, making panel removal and reinstallation faster and more precise for fleets operating across the Permian Basin and West Texas.
Key Features & Customer Benefits
- 1/4-20 UNC Thread – Accepts standard 1/4-20 fasteners for wide parts availability and consistent torque retention.
- Self-Retaining U-Clip Design – Clips onto panel edges for blind fastening, reducing installation time during roadside or shop service.
- Vibration-Resistant Engagement – Provides secure thread engagement that resists loosening on transport refrigeration and reefer trailer applications.
- OEM-Compatible Fit – Engineered to align with Thermo King panel fastener points for reliable, repeatable installation and reduced rework.
- Corrosion-Resistant Finish – Typical black phosphate or plated finish helps maintain reliability in exterior refrigeration environments.
- Serviceability – Simplifies maintenance workflows to help maximize vehicle uptime and fleet ROI in Amarillo, Lubbock, Odessa, and beyond.
Product Details
| Part Number | 559325 |
| Product Name | Nut-Speed U 1/4-20 |
| Thread Size | 1/4-20 UNC |
| Function | Self-retaining clip-on threaded nut for panel fastening |
| Typical Material/Finish | Steel with corrosion-resistant finish (typical) |
| Compatibility | Designed for Thermo King refrigeration unit panels and transport refrigeration service points |
Efficiency & Sustainability
Reliable panel fasteners like the Nut-Speed U 1/4-20 559325 contribute to lower service time and reduced vehicle downtime, supporting efficient temperature control operations. Consistent fitment minimizes rework and waste during maintenance, aiding fleets that operate Smart Reefer SR-4 monitored units and Diesel Direct Electric configurations in meeting uptime and compliance goals.
Installation & Maintenance Tips
Install by snapping the U-clip onto the panel edge and align the threaded opening with the access hole. Use the correct 1/4-20 fastener and OEM-recommended torque values. Inspect clip engagement and finish during scheduled maintenance intervals and replace if deformation is evident to preserve secure fastening and precise panel alignment.
Real-World Applications
The Nut-Speed U 1/4-20 559325 is ideal for securing service panels, access doors, and interior or exterior trim on refrigerated trucks, reefer trailers, and Thermo King refrigeration units, including common service platforms. It supports fleet operations across the Southwest where reliable temperature control and quick serviceability drive uptime.
Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
View all Thermo King PartsBacked by Thermo King’s engineering and supported by certified technicians at West Texas Thermo King, this component delivers lasting performance and uptime assurance for fleet operations.
For product verification or service assistance, call (806) 376-5837.
For current warranty eligibility or OEM replacement coverage, please contact us for warranty information or contact the service department for confirmation.
Frequently Asked Questions
Q: Is this fastener compatible with Thermo King Precedent and S-Series panels?
A: Yes. The Nut-Speed U 1/4-20 559325 fits common Thermo King panel fastening points and supports secure reinstallation across Precedent and S-series platforms when used with the correct 1/4-20 hardware.
Q: Can this clip be installed during roadside repairs?
A: Yes. The self-retaining U-clip design enables one-sided installation, making it effective for field service and minimizing downtime for refrigerated trailers and trucks.
Q: What maintenance checks are recommended?
A: Inspect clip engagement, thread integrity, and finish during scheduled service intervals. Replace any clip showing deformation or corrosion to maintain reliable panel retention.
Related Resources
Ask about fleet-wide parts programs through West Texas Thermo King.
Produced by a certified Thermo King dealership, West Texas Thermo King | a Division of PEAK Industrial. Servicing fleets across Amarillo, Lubbock, and Odessa.