The Genie 18504GT is a genuine OEM Large Flange Locking Nut, 1/4-20 built for a wide range of Genie equipment, including GS scissor lifts, S and Z series boom lifts, GTH telehandlers, and select Genie light towers and vertical mast lifts. As a direct OEM replacement, this nut is manufactured to the same dimensional and material standards as the original hardware, ensuring a correct, secure fit without modification. Cross-reference part number 18504GT against your machine's parts manual to confirm fitment for your specific unit before ordering.
Key Features
- Genuine OEM Hardware Grade — Manufactured to Genie's original material and dimensional specifications, delivering the thread engagement and clamping load the fastener position demands.
- Large Flange Design — The integrated large flange distributes clamping force over a wider bearing surface, reducing the need for a separate washer and improving load distribution at the joint.
- Locking Thread Security — The locking feature resists loosening under vibration and dynamic loads, helping to keep fastened assemblies secure during normal machine operation.
- Broad Equipment Compatibility — Fits multiple Genie equipment families including GS scissor lifts, S and Z articulating and telescopic boom lifts, GTH telehandlers, and TML light towers.
- 1/4-20 Thread Specification — Standard 1/4-20 thread form ensures compatibility with mating hardware already on the machine, streamlining replacement in the field.
A locking flange nut combines a prevailing-torque locking element with a wide, integrated flange that acts as a built-in washer. The locking feature — whether a nylon insert, distorted thread, or similar mechanism — creates resistance that prevents the nut from backing off under vibration, cyclical loading, or thermal cycling. The large flange spreads the clamping load across a broader area of the mating surface, which protects softer materials from damage and maintains joint integrity over time. When a locking nut loses its locking effectiveness through reuse or wear, or when the flange is damaged, the fastened joint can loosen progressively, leading to misalignment, component movement, or structural failure at that connection point — making timely replacement with a correctly specified OEM part essential.
Part Details
| Part Number | 18504GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Large Flange Locking Nut, 1/4-20 |
Compatibility & Fitment
| Name | Models |
|---|---|
| GRC-12 | GRC-12 |
| GS-30 | GS-30 |
| GS-32 | GS-32 |
| GS-46 | GS-46 |
| GS-1330m | GS-1330m |
| GS-1530 | GS-1530 |
| GS-1532 | GS-1532 |
| GS-1930 | GS-1930 |
| GS-1932 | GS-1932 |
| GS-2032 | GS-2032 |
| GS-2046 | GS-2046 |
| GS-2632 | GS-2632 |
| GS-2646 | GS-2646 |
| GS-3232 | GS-3232 |
| GS-3246 | GS-3246 |
| GS-4047 | GS-4047 |
| GTH-844 | GTH-844 |
| GTH-1056 | GTH-1056 |
| S-60 | S-60 |
| S-65 | S-65 |
| S-100HD | S-100HD |
| S-120HD | S-120HD |
| TML-4000N | TML-4000N |
| TZ-50/30 | TZ-50/30 |
| Z-33 DC Power | Z-33 DC Power |
| Z-34 IC | Z-34 IC |
| Z-34/22 DC | Z-34/22 DC |
| Z-34/22 IC | Z-34/22 IC |
| Z-34/22 N | Z-34/22 N |
| Z-45/22 | Z-45/22 |
| Z-45/22 MP | Z-45/22 MP |
| Z-45/25 | Z-45/25 |
| Z-45/25 IC | Z-45/25 IC |
| Z-45/25J Bi-Energy | Z-45/25J Bi-Energy |
| Z-45/25J DC | Z-45/25J DC |
| Z-45/25J IC | Z-45/25J IC |
| Z-45/25J IC Power | Z-45/25J IC Power |
| Z-51/30J | Z-51/30J |
| Z-60/34 | Z-60/34 |
| Z-62/40 | Z-62/40 |
| Z33/18 | Z33/18 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
