The Genie 1257866GT Hex Head Flange Screw is a genuine OEM fastener built for a wide range of Genie telescopic boom lifts, scissor lifts, and articulating boom lifts, including S series booms, GS series scissor lifts, and Z series articulating booms. As a factory-authorized OEM part, this screw is manufactured to the exact dimensional and material specifications called out in Genie's parts documentation. Confirm part number 1257866GT against your machine's parts manual to verify it is the correct item for your serial number and configuration before ordering.
Key Features
- Grade 8 Strength, ZAG Finish — Manufactured to Grade 8 hardness with a zinc alloy-coated (ZAG) finish, delivering the tensile strength and corrosion resistance Genie specifies for this fastener position.
- Exact Thread and Dimensional Match — Cut to 1/4-20 thread spec at 2.25 inches in length, this screw threads directly into the tapped bore without chasing or modification.
- Integrated Flange Bearing Surface — The hex head flange distributes clamping load evenly across the joint, reducing the need for a separate washer and maintaining the clamped assembly's integrity over the machine's service life.
- Broad Genie Fleet Coverage — Fits Genie S series telescopic booms, GS series scissor lifts, and Z series articulating booms, making it a practical fastener to keep in stock across a mixed Genie fleet.
- Genuine OEM Traceability — Supplied as a genuine Genie OEM part, ensuring the correct grade, thread form, and finish are present — critical when replacing structural or high-load fasteners on aerial equipment.
A hex head flange screw combines a standard hex-drive head with an integrated washer-like flange at its base. The flange spreads the clamping force over a wider area than a plain hex head alone, helping to hold assembled components securely even under vibration and repeated load cycles common in aerial lift operation. A loose or incorrect fastener in a structural or panel joint can allow movement and accelerated wear at the connection point; replacing a worn or damaged screw with the correct OEM-specified part restores the joint to its intended clamping specification.
Part Details
| Part Number | 1257866GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Hex Head Flange Screw, 1/4-20 x 2.25, Grade 8, ZAG |
Compatibility & Fitment
| Name | Model |
|---|---|
| S-80X | S-80X |
| S-80 | S-80 |
| S-85 | S-85 |
| S-60 XC | S-60 XC |
| S-65 XC | S-65 XC |
| S-60 HF | S-60 HF |
| S-65 HF | S-65 HF |
| 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-80 J | S-80 J |
| S-45 XC | S-45 XC |
| S-40 XC | S-40 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-85 XC FE | S-85 XC FE |
| S-85 XC E | S-85 XC E |
| GS-1530 | GS-1530 |
| GS-1532 | GS-1532 |
| GS-1930 | GS-1930 |
| GS-1932 | GS-1932 |
| GS-2669DC | GS-2669DC |
| GS-3369DC | GS-3369DC |
| GS-4069DC | GS-4069DC |
| GS-3390 | GS-3390 |
| GS-4390 | GS-4390 |
| GS-5390 | GS-5390 |
| Z-40/23N | Z-40/23N |
| Z-40/23N RJ | Z-40/23N RJ |
| 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-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 |
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.
