Product Description
Yale OEM Nut YL 580017789—heavy hex lock nut, steel grade 2, thread size 1/2-13 UNC. Replaces OEM and equivalent part numbers from Toyota, Hyster, Caterpillar. Used for Yale electric lift truck assemblies requiring precise fastening and compatibility.
Specifications
Part Numbers
| OEM Part Number | YL 580017789 |
| Cross-Reference Part Numbers | 00591-74267-81 (Toyota), 220075411 (Yale), 221719 (Hyster), 3056120 (Hyster), 7H3609 (Caterpillar), 800020930, SY43991 |
Frequently Asked Questions
Q: What type of fastener is the YL 580017789?
A: The YL 580017789 is a heavy hex lock nut made of steel grade 2. It has a thread size of 1/2-13 UNC and is used for precise fastening in Yale electric lift truck assemblies.
Q: What are the specifications of the YL 580017789 nut?
A: The YL 580017789 is a heavy hex lock nut with the following specifications: steel grade 2, thread size 1/2-13 UNC. The nut is designed for reliable fastening and compatibility across lift truck assemblies.
Q: Is the YL 580017789 compatible with other equipment brands?
A: Yes. The YL 580017789 has cross-reference part numbers from multiple manufacturers: Toyota 00591-74267-81, Hyster 221719 and 3056120, Caterpillar 7H3609, and 800020930 and SY43991. This nut is applicable across Yale and other major lift truck brands.
Q: Why is a lock nut used instead of a standard nut?
A: A lock nut resists vibration-induced loosening that occurs during normal lift truck operation. The YL 580017789 heavy hex lock nut maintains fastening security in high-vibration warehouse environments.