Product Description
Atlas AT Z-1228 Lock Washer is an OEM replacement component for Atlas Zenith Type 9 manual pallet jacks, manufactured from SAE J429 medium carbon steel and conforming to ANSI B18.21.1 standards, with 0.77 inch OD, 0.51 inch ID, and 0.11 inch thickness for reliable frame and load roller retention.
Compatibility: Fits pallet jacks made by Atlas, model Zenith. SKU: AT Z-1228
Specifications
Material & Construction
| Hardness | Rockwell C40 minimum |
| Finish/Coating | Plain finish |
Part Numbers
| Manufacturer Part Number | AT Z-1228 |
| Compatible Model | Atlas Zenith Type 9 manual pallet jack |
| OEM Part Number | AT Z-1228 |
Frequently Asked Questions
Q: What is the AT Z-1228 and what does it secure?
A: The AT Z-1228 is an OEM replacement lock washer manufactured from SAE J429 medium carbon steel. It secures frame and load roller components on Atlas Zenith Type 9 manual pallet jacks, preventing fastener loosening under load cycling.
Q: What are the exact dimensions of the AT Z-1228 lock washer?
A: The AT Z-1228 has an outer diameter of 0.77 inch, an inner diameter of 0.51 inch, and a thickness of 0.11 inch. These dimensions ensure compatibility with specific fastener sizes on Zenith jack frames.
Q: Does the AT Z-1228 meet industry standards?
A: Yes. The AT Z-1228 conforms to ANSI B18.21.1 standards and meets SAE J429 specifications. It has a Rockwell C40 minimum hardness rating and is supplied in plain finish for reliable performance.
Q: Which pallet jacks use the AT Z-1228 lock washer?
A: The AT Z-1228 is compatible with Atlas Zenith Type 9 manual pallet jacks. Verify that your equipment matches this model designation before ordering.
Q: What material is the AT Z-1228 and how does it perform?
A: The AT Z-1228 is constructed from SAE J429 medium carbon steel with Rockwell C40 minimum hardness. This material resists deformation under repeated clamping stress and maintains its locking force during normal pallet jack operation.