Product Description
MO 18E211 is an OEM hex jam nut manufactured by Mobile for manual pallet jack assemblies, featuring M18 right-hand threads, thin profile per DIN 439B/ISO 4035, 27 mm flat width, 9 mm thickness, and manufactured from low carbon steel with Rockwell B68–C32 hardness.
Compatibility: Fits pallet jacks made by Mobile, model ECO I-55 (Newer) Frame. Alternate model: ECO I55 (Newer) Frame; ECO I 55 (Newer) Frame. SKU: MO 18E211
Specifications
Material
| Material Specification | Low carbon steel |
| Hardness | Rockwell B68–C32 |
Part Numbers
| OEM Part Number | MO 18E211 |
Frequently Asked Questions
Q: What are the thread specifications for the MO 18E211 hex jam nut?
A: The MO 18E211 features M18 right-hand threads and is manufactured to thin profile specifications per DIN 439B and ISO 4035 standards. The flat width measures 27 mm and the thickness is 9 mm. These specifications ensure compatibility with M18 threaded components on the ECO I-55 frame.
Q: What material and hardness does the MO 18E211 hex jam nut use?
A: The MO 18E211 is manufactured from low carbon steel with hardness rated between Rockwell B68 and C32. This material composition provides adequate strength for frame assembly while remaining machinable and resistant to standard vibration loosening in manual pallet jack service.
Q: Which Mobile pallet jack models use the MO 18E211?
A: The MO 18E211 hex jam nut fits Mobile ECO I-55 (Newer) Frame manual pallet jacks. It is compatible with the newer frame variants designated ECO I55 (Newer) Frame and ECO I 55 (Newer) Frame. Verify your equipment model before ordering.
Q: What is the purpose of a thin profile jam nut on pallet jack assemblies?
A: The thin profile hex jam nut serves to secure frame components and hydraulic elements under vibration and load cycles. The M18 right-hand thread engages with matching studs or bolts, and the jam nut design resists unintended loosening during pallet jack operation.
Q: Are there equivalent cross-reference parts for the MO 18E211?
A: The MO 18E211 is an OEM part manufactured by Mobile for the ECO I-55 newer frame assembly. No equivalent cross-reference or aftermarket alternatives have been identified. Use only the OEM MO 18E211 to maintain equipment integrity and warranty compliance.