The Genie 1256850GT is a genuine OEM Hex Head Flange Screw, 1/2-13x3.25 built for Genie GS scissor lifts, the TZ-34/20 trailer-mounted articulating boom, and the ZX-135/70 articulating boom. As a direct OEM replacement sourced through Genie's authorized parts chain, this fastener meets the same dimensional and grade specifications as the hardware installed at the factory. Cross-reference part number 1256850GT against your machine's parts manual to confirm it is the correct item for your serial number and configuration before ordering.
Key Features
- Grade-Matched Construction — Zinc-alloy coated (ZAG) Grade 8 steel fastener engineered to the same material and torque specification as the original hardware.
- Integrated Flange Design — The hex head flange distributes clamping load over a wider bearing surface, reducing the need for a separate washer and maintaining consistent joint integrity.
- Correct Thread Specification — 1/2-13 UNC thread form and 3.25-inch grip length match the original hole pattern and engagement depth exactly as engineered.
- Broad Scissor Lift and Boom Fitment — Compatible with GS-series bi-energy, DC, RT, and micro scissor lift variants, plus the TZ-34/20 and ZX-135/70, covering a wide range of Genie equipment on a single part number.
- OEM-Sourced Reliability — Supplied as a genuine Genie OEM part, ensuring the fastener has not been substituted with an off-grade or non-conforming equivalent that could compromise joint clamping force over time.
A hex head flange screw is a structural fastener that combines a hex drive head with a built-in flange, functioning like a bolt and washer in a single piece. The flange spreads the clamping load across a broader contact area, helping to prevent the fastener from pulling through or loosening under vibration and dynamic loading — conditions common on mobile aerial equipment. A fastener that is the wrong grade, thread pitch, or length can fail to hold the designed clamp load, leading to joint movement or loosening that affects the structural integrity of the assembly it secures. Using the correct OEM-specification replacement keeps the joint performing as designed for the life of the machine.
Part Details
| Part Number | 1256850GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Hex Head Flange Screw, 1/2-13x3.25 |
Compatibility & Fitment
| Name | Model |
|---|---|
| GS-2669BE | GS-2669BE |
| GS-3369BE | GS-3369BE |
| GS-4069BE | GS-4069BE |
| GS-2669DC | GS-2669DC |
| GS-3369DC | GS-3369DC |
| GS-4069DC | GS-4069DC |
| GS-2669RT | GS-2669RT |
| GS-3369RT | GS-3369RT |
| GS-4069RT | GS-4069RT |
| GS-1332m | GS-1332m |
| GS-1432m | GS-1432m |
| GS-1932m | GS-1932m |
| TZ-34/20 | TZ-34/20 |
| ZX-135/70 | ZX-135/70 |
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.
