The Genie 1257628GT is a genuine OEM Serrated Nut, 3/8-16, ZAG built for Genie S-series telescopic boom lifts, Z-series articulating boom lifts, SX-series super-boom lifts, and the TZ-50/30 trailer-mounted boom. As a genuine OEM part, it is manufactured to the same specifications as the hardware installed at the factory, ensuring consistent thread engagement and clamping performance. Cross-reference part number 1257628GT against your machine's parts manual to confirm it is the correct item for your specific unit and serial number. Keep a spare on hand to avoid unnecessary delays during scheduled maintenance or field repairs.
Key Features
- Genuine OEM Hardware Grade — Manufactured to Genie's dimensional and material specifications, including the correct zinc-alloy galvanized (ZAG) finish for corrosion resistance in outdoor and demanding jobsite environments.
- Correct Thread Spec — 3/8-16 thread size matches the original fastener exactly, ensuring proper engagement and clamping force without reworking the mating hardware.
- Serrated Flange Design — The serrated bearing face bites into the mating surface to resist loosening under vibration and operational loads, maintaining joint integrity over the service life of the machine.
- Broad Genie Boom Compatibility — Fits a wide range of Genie S-series telescopic booms (including XC, TRAX, HF, and FE variants), Z-series articulating booms, SX-series super-booms, and the TZ-50/30 — confirm your model against the parts manual before ordering.
- Structural Joint Integrity — A fastener that has lost its serrations or correct torque spec can allow critical connections to work loose. Replacing a worn or damaged nut with the correct OEM part restores the joint to its original holding strength.
A serrated nut combines a standard threaded nut with a flange that features small, angled teeth on its bearing face. When tightened, those teeth embed into the surface of the mating component and act as a mechanical lock, preventing the fastener from backing off due to vibration or dynamic loading — conditions common on boom lifts that travel across rough terrain and cycle their booms repeatedly through a shift. A nut that has worn serrations or has been over-torqued and flattened will no longer grip reliably, allowing the joint to loosen and potentially compromising the structural connection it secures. Replacing it promptly with the correct OEM fastener restores the assembly to its intended holding specification.
Part Details
| Part Number | 1257628GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Serrated Nut, 3/8-16, 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 |
| TZ-50/30 | TZ-50/30 |
| 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-51/30J | Z-51/30J |
| Z-40/23N | Z-40/23N |
| Z-40/23N RJ | Z-40/23N RJ |
| ZX-135/70 | ZX-135/70 |
| 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.
