The Genie 1256679GT Serrated Nut, 1/4-20 is a genuine OEM fastener built for a wide range of Genie equipment, including S series telescopic boom lifts, GS series scissor lifts, Z series articulating boom lifts, and GTH series telehandlers. As a direct OEM replacement, this nut matches the original specification for grade, thread pitch, and serration pattern, ensuring it seats and locks exactly as the factory intended. Cross-reference part number 1256679GT against your machine's parts manual to confirm it is the correct fastener for your application before ordering.
Key Features
- OEM-Grade Fastener Construction — Manufactured to Genie's original material grade and dimensional spec, with a ZAG zinc coating for corrosion resistance in outdoor and heavy-use environments.
- Serrated Locking Design — The serrated flange bites into the mating surface as the nut is tightened, creating mechanical resistance to loosening under vibration without the need for a separate lock washer.
- 1/4-20 Thread Compatibility — Cut to a standard 1/4-20 thread profile for straightforward installation onto existing fastener assemblies with no reworking of the joint.
- Broad Genie Fleet Coverage — A single part number fits across Genie S and Z boom lifts, GS scissor lifts, and GTH telehandlers, making it a practical stocking item for mixed Genie fleets.
- Vibration Resistance Protects Structural Joints — A fastener that loses its clamp load under machine vibration can allow assemblies to shift or separate. The serrated flange maintains clamping force across the service interval.
A serrated nut combines a standard hex nut with an integral serrated flange that acts as a built-in lock. When tightened, the serrations cut into the bearing surface beneath the nut, resisting rotation caused by vibration or dynamic loading — common conditions on mobile aerial equipment. Unlike a plain nut that may require a separate locking element, this nut provides resistance to loosening as a single fastener. A worn or damaged nut that has lost its serration depth or thread integrity should be replaced promptly, as a fastener that backs out under load can compromise the integrity of the assembly it secures.
Part Details
| Part Number | 1256679GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Serrated Nut, 1/4-20, 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 |
| 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-2032 | GS-2032 |
| GS-2632 | GS-2632 |
| GS-3232 | GS-3232 |
| GS-2046 | GS-2046 |
| GS-2646 | GS-2646 |
| GS-3246 | GS-3246 |
| GS-4047 | GS-4047 |
| GS-1530 | GS-1530 |
| GS-1532 | GS-1532 |
| GS-1930 | GS-1930 |
| GS-1932 | GS-1932 |
| GS-3384 | GS-3384 |
| GS-3390 | GS-3390 |
| GS-4390 | GS-4390 |
| GS-5390 | GS-5390 |
| GS-1330m | GS-1330m |
| GS-4655 | GS-4655 |
| GS-4046 | GS-4046 |
| GS-1332m | GS-1332m |
| GS-1432m | GS-1432m |
| GS-1932m | GS-1932m |
| 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 IC Power | Z-45/25J IC Power |
| Z-80/60 | Z-80/60 |
| Z-45 XC | Z-45 XC |
| 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-45/25J DC | Z-45/25J DC |
| Z-45/25J Bi-Energy | Z-45/25J Bi-Energy |
| 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.
