The Genie 1255805GT is a genuine OEM Serrated Nut, 5/16-18, 8, ZAG built for a wide range of Genie equipment, including GS scissor lifts, S and Z series boom lifts, and GTH telehandlers. As a direct OEM replacement, this nut meets Genie's original specifications for material grade and thread form. Cross-reference part number 1255805GT against your machine's parts manual to confirm it is the correct fastener for your application before ordering.
Key Features
- Genuine OEM Grade Fastener — Manufactured to Genie's original material and dimensional standards, with a serrated flange profile that delivers consistent locking performance and corrosion-resistant ZAG finish.
- Correct Thread Form — 5/16-18 thread specification matches the original fastener exactly, seating flush without rework or thread chasing.
- Broad Fitment Across Genie Families — Fits Genie GS scissor lifts, S and Z series boom lifts, and GTH telehandlers, covering a wide cross-section of the Genie fleet.
- Serrated Flange Locking Action — The serrated underside bites into the mating surface under torque, resisting loosening from vibration without the need for a separate lock washer.
- Simple, Direct Replacement — Drops into the original fastener position with standard tooling, making replacement straightforward during scheduled maintenance or field repair.
A serrated flange nut combines a standard hex nut with an integrated serrated washer face. When tightened, the serrations on the bearing face cut into the clamping surface, creating mechanical resistance to rotation that keeps the fastener from backing off under vibration and dynamic loading — conditions common across aerial lifts and telehandlers in daily use. A missing, stripped, or undersized nut in its place compromises joint integrity and should be replaced with the correct OEM fastener to restore the connection to its original clamping specification.
Part Details
| Part Number | 1255805GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Serrated Nut, 5/16-18, 8, ZAG |
Compatibility & Fitment
| Name | Model |
|---|---|
| S-60 | S-60 |
| S-65 | S-65 |
| S-60X | S-60X |
| S-60 XC | S-60 XC |
| S-60 HC | S-60 HC |
| S-60 TRAX | S-60 TRAX |
| S-65 TRAX | S-65 TRAX |
| S-65 XC | S-65 XC |
| S-60 HF | S-60 HF |
| S-65 HF | S-65 HF |
| S-80X | S-80X |
| S-80 | S-80 |
| S-85 | S-85 |
| S-80 XC | S-80 XC |
| S-85 XC | S-85 XC |
| S-80 HF | S-80 HF |
| S-85 HF | S-85 HF |
| SX-105 XC | SX-105 XC |
| SX-125 XC | SX-125 XC |
| S-40 XC | S-40 XC |
| S-45 XC | S-45 XC |
| S-40 TRAX | S-40 TRAX |
| S-45 TRAX | S-45 TRAX |
| S-40 HF | S-40 HF |
| S-45 HF | S-45 HF |
| S-60 J | S-60 J |
| S-80 J | S-80 J |
| S-60 FE Hybrid | S-60 FE Hybrid |
| S-60 DC | S-60 DC |
| S-60 FE | S-60 FE |
| S-85 XC FE | S-85 XC FE |
| S-85 XC E | S-85 XC E |
| GS-3384 | GS-3384 |
| GS-3390 | GS-3390 |
| GS-4390 | GS-4390 |
| GS-5390 | GS-5390 |
| GS-2032 | GS-2032 |
| GS-2632 | GS-2632 |
| GS-3232 | GS-3232 |
| GS-2046 | GS-2046 |
| GS-2646 | GS-2646 |
| GS-3246 | GS-3246 |
| GS-1530 | GS-1530 |
| GS-1532 | GS-1532 |
| GS-1930 | GS-1930 |
| GS-1932 | GS-1932 |
| GS-4046 | GS-4046 |
| GTH-636 | GTH-636 |
| GTH-844 | GTH-844 |
| GTH-1056 | GTH-1056 |
| GTH-1256 | GTH-1256 |
| GTH-1044 | GTH-1044 |
| GTH-1244 | GTH-1244 |
| GTH-1544 | GTH-1544 |
| Z-51/30J | Z-51/30J |
| Z-62/40 | Z-62/40 |
| Z-40/23N | Z-40/23N |
| Z-40/23N RJ | Z-40/23N RJ |
| Z-45/25 | Z-45/25 |
| Z-45/25J DC | Z-45/25J DC |
| Z-45/25J Bi-Energy | Z-45/25J Bi-Energy |
| Z-45/25J IC Power | Z-45/25J IC Power |
| Z-34/22 Bi-Energy | Z-34/22 Bi-Energy |
| Z-34/22 DC | Z-34/22 DC |
| Z-34/22 N | Z-34/22 N |
| Z-45 XC | Z-45 XC |
| Z-34/22 IC | Z-34/22 IC |
| Z-60/37 DC | Z-60/37 DC |
| Z-60/37 FE Hybrid | Z-60/37 FE Hybrid |
| Z-45/25 IC | Z-45/25 IC |
| Z-60 DC | Z-60 DC |
| Z-60 FE Hybrid | Z-60 FE Hybrid |
| Z-45 FE Hybrid | Z-45 FE Hybrid |
| Z-45 DC | Z-45 DC |
| Z-60 FE | Z-60 FE |
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.
