Thermo King Chrome-Plated Hex-Head Screw 3/8-16 x 1-3/4 553641
Official OEM Thermo King parts catalog entry for the Thermo King Screw HH CP 3/8-16 x 1-3/4 (Part 553641), verified by PEAK Thermo King and West Texas Thermo King Texas, Utah, Wyoming, Washington, Oregon, serving all of the USA.
Built for Performance: Thermo King refrigeration system fasteners deliver reliable service life and secure assembly for temperature-control fleets. The Thermo King Screw HH CP 3/8-16 x 1-3/4 (Part 553641) provides OEM-grade fastening for transport refrigeration and reefer trailer applications where durability and consistent torque retention matter.
Key Features & Customer Benefits
- Hex Head Design – Enables precise torque application with standard sockets and wrenches for consistent installation and serviceability.
- 3/8-16 Threading – Standard coarse thread pitch ensures strong engagement and reliable clamping in typical refrigeration assemblies.
- 1-3/4" Length (measured under head) – Provides correct penetration for secure fixture of panels, brackets, and component mounts without excess exposure.
- Chrome-Plated Finish (CP) – Enhances corrosion resistance and surface durability in humid and road-salt environments common across West Texas operations.
- OEM Specification – Manufactured to Thermo King hardware standards for fit, form, and function in transport refrigeration applications.
- Fleet Uptime Focus – Reduces on-road fastener failures and supports scheduled maintenance programs for better operational availability.
Product Details
| Part Number | 553641 |
| Description | Thermo King Screw HH CP 3/8-16 x 1-3/4 |
| Thread Size | 3/8-16 (coarse) |
| Length | 1-3/4" (measured from under head to tip) |
| Head Type | Hex head |
| Finish | Chrome plated |
| Material | Steel, chrome plated (OEM hardware standard) |
| Typical Application | Fastening components on Thermo King transport refrigeration and reefer trailer assemblies |
Efficiency & Sustainability
This OEM fastener supports efficient, durable assemblies that help fleets maximize equipment life and reduce replacement frequency. Using certified Thermo King hardware contributes to reliable temperature control across Smart Reefer SR-4 deployments and aligns with broader environmental programs such as CARB Evergreen when installed as part of compliant service programs.
Installation & Maintenance Tips
Install using the correct socket or wrench size for the hex head and measure torque to OEM specifications during service. Inspect threads and plating during scheduled maintenance intervals and replace any fasteners that show damage or excessive corrosion. Use OEM fasteners and approved thread-locking products where recommended to maintain secure, vibration-resistant assemblies.
Real-World Applications
This Thermo King screw secures panels, brackets, and component mountings across refrigerated trucks, reefer trailers, and transport refrigeration units. Fleets in Amarillo, Lubbock, Odessa, and the Permian Basin use OEM hardware like this to maintain temperature control reliability and reduce downtime. Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
Backed 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 our service department for confirmation.
Frequently Asked Questions
Q: Is this screw suitable for general Thermo King refrigeration assemblies?
A: Yes. This OEM Thermo King fastener is specified for use in transport refrigeration and reefer trailer assemblies where a 3/8-16 x 1-3/4 hex head screw is required.
Q: What does CP mean in the part description?
A: CP denotes chrome-plated finish, which provides enhanced surface protection against corrosion in humid and exposed operating environments.
Q: How should I inspect this fastener during maintenance?
A: Inspect for thread damage, head rounding, and plating loss. Replace fasteners that show wear to maintain secure connections and consistent torque retention.
Q: Can West Texas Thermo King supply and install this part?
A: Yes. Certified technicians at West Texas Thermo King supply and install OEM hardware across West Texas service locations.
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 Screw HH CP 3/8-16 x 1-3/4 (Part 553641), verified by PEAK Thermo King and West Texas Thermo King Texas, Utah, Wyoming, Washington, Oregon, serving all of the USA.
Built for Performance: Thermo King refrigeration system fasteners deliver reliable service life and secure assembly for temperature-control fleets. The Thermo King Screw HH CP 3/8-16 x 1-3/4 (Part 553641) provides OEM-grade fastening for transport refrigeration and reefer trailer applications where durability and consistent torque retention matter.
Key Features & Customer Benefits
- Hex Head Design – Enables precise torque application with standard sockets and wrenches for consistent installation and serviceability.
- 3/8-16 Threading – Standard coarse thread pitch ensures strong engagement and reliable clamping in typical refrigeration assemblies.
- 1-3/4" Length (measured under head) – Provides correct penetration for secure fixture of panels, brackets, and component mounts without excess exposure.
- Chrome-Plated Finish (CP) – Enhances corrosion resistance and surface durability in humid and road-salt environments common across West Texas operations.
- OEM Specification – Manufactured to Thermo King hardware standards for fit, form, and function in transport refrigeration applications.
- Fleet Uptime Focus – Reduces on-road fastener failures and supports scheduled maintenance programs for better operational availability.
Product Details
| Part Number | 553641 |
| Description | Thermo King Screw HH CP 3/8-16 x 1-3/4 |
| Thread Size | 3/8-16 (coarse) |
| Length | 1-3/4" (measured from under head to tip) |
| Head Type | Hex head |
| Finish | Chrome plated |
| Material | Steel, chrome plated (OEM hardware standard) |
| Typical Application | Fastening components on Thermo King transport refrigeration and reefer trailer assemblies |
Efficiency & Sustainability
This OEM fastener supports efficient, durable assemblies that help fleets maximize equipment life and reduce replacement frequency. Using certified Thermo King hardware contributes to reliable temperature control across Smart Reefer SR-4 deployments and aligns with broader environmental programs such as CARB Evergreen when installed as part of compliant service programs.
Installation & Maintenance Tips
Install using the correct socket or wrench size for the hex head and measure torque to OEM specifications during service. Inspect threads and plating during scheduled maintenance intervals and replace any fasteners that show damage or excessive corrosion. Use OEM fasteners and approved thread-locking products where recommended to maintain secure, vibration-resistant assemblies.
Real-World Applications
This Thermo King screw secures panels, brackets, and component mountings across refrigerated trucks, reefer trailers, and transport refrigeration units. Fleets in Amarillo, Lubbock, Odessa, and the Permian Basin use OEM hardware like this to maintain temperature control reliability and reduce downtime. Available for installation and service in Amarillo, Lubbock, Odessa, and throughout West Texas.
Backed 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 our service department for confirmation.
Frequently Asked Questions
Q: Is this screw suitable for general Thermo King refrigeration assemblies?
A: Yes. This OEM Thermo King fastener is specified for use in transport refrigeration and reefer trailer assemblies where a 3/8-16 x 1-3/4 hex head screw is required.
Q: What does CP mean in the part description?
A: CP denotes chrome-plated finish, which provides enhanced surface protection against corrosion in humid and exposed operating environments.
Q: How should I inspect this fastener during maintenance?
A: Inspect for thread damage, head rounding, and plating loss. Replace fasteners that show wear to maintain secure connections and consistent torque retention.
Q: Can West Texas Thermo King supply and install this part?
A: Yes. Certified technicians at West Texas Thermo King supply and install OEM hardware across West Texas service locations.
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.
