Product Description
OEM Jet JT PT2748W-59 Screw for Jet W Series Manual Pallet Truck pump assembly. Features M6x8 metric thread, hex socket head, ISO 898-1 Class 8.8 carbon steel construction, and black oxide finish. Designed for secure mounting within the hydraulic pump assembly to ensure reliable service life.
Compatibility: Fits pallet jacks made by Jet, model W. SKU: JT PT2748W-59
Specifications
Material
| Material Specification | Carbon steel per ISO 898-1 Class 8.8 |
| Hardness | Rockwell C25 minimum |
Part Numbers
| OEM Part Number | JT PT2748W-59 |
Performance Specifications
| Service Factor | 1.0 per single installation |
Frequently Asked Questions
Q: What are the specifications of the JT PT2748W-59 screw?
A: The JT PT2748W-59 is an M6x8 metric screw with a hex socket head, black oxide finish, and ISO 898-1 Class 8.8 carbon steel construction. It features a minimum Rockwell C25 hardness rating. The part is engineered as an assembly screw for Jet model W pump assemblies requiring secure, corrosion-resistant fastening.
Q: Which Jet pallet jack models use the JT PT2748W-59 screw?
A: The JT PT2748W-59 is designed for Jet model W series manual pallet jacks. It secures critical components within the hydraulic pump assembly. Confirm your equipment designation as model W before ordering to ensure correct fitment.
Q: What does ISO 898-1 Class 8.8 mean for this screw?
A: ISO 898-1 Class 8.8 specifies the screw meets international strength and hardness standards. The first numeral 8 indicates 800 MPa minimum tensile strength, the second 8 represents 80 percent yield strength ratio. Class 8.8 carbon steel provides high reliability under the cyclic loading and vibration typical in hydraulic pump assemblies.
Q: Why is the black oxide finish important on the JT PT2748W-59?
A: Black oxide finish provides corrosion resistance in the presence of hydraulic fluid, moisture, and vibration-induced micro-movement. This finish prevents rust formation and maintains threads integrity over the service life of the pump assembly, reducing the risk of seizure during future maintenance.
Q: When does the JT PT2748W-59 screw need replacement?
A: Replace the JT PT2748W-59 if you observe stripped threads, visible corrosion beyond the black oxide layer, deformation of the hex socket, or if the screw does not hold proper torque during pump reassembly. Do not reuse screws showing damage; they may fail under operating pressure.
Q: Is the JT PT2748W-59 sold individually or in kits?
A: The JT PT2748W-59 is typically available as an individual screw. Pump assemblies may require multiple screws of varying sizes. Contact our parts team to confirm quantity and related fasteners needed for your specific assembly or repair.