The Genie 1259857GT is a genuine OEM Flat Head Socket Screw, 3/8-16 x 1.75 designed for Genie S series telescopic boom lifts and Z series articulating boom lifts. As a direct OEM replacement, this screw is manufactured to the same material grade and dimensional standards as the original, ensuring a correct, consistent fit every time. Compatible models include the S-40, S-45, Z-45/25, Z-45/25J DC, Z-45/25J Bi-Energy, Z-45/25J IC Power, Z-45 XC, Z-45/25 IC, and Z-51/30J — cross-reference part number 1259857GT against your machine's parts manual to confirm the correct application before ordering.
Key Features
- OEM-Grade Material and Finish — Manufactured to Genie's specified F835 material grade with a ZAG (zinc-alloy) finish, delivering the corrosion resistance and hardness the original design calls for.
- Exact Thread and Dimensional Spec — 3/8-16 threading and 1.75-inch length match the original fastener precisely, so this screw seats and torques correctly without rework or modification.
- Broad S and Z Boom Compatibility — Fits a wide range of Genie telescopic and articulating boom lifts, including multiple Z-45/25J variants and S-40 and S-45 models, covering both standard and specialty-power configurations.
- Structural Integrity Where It Counts — A fastener at the correct grade and spec keeps assembled components secure under the loads and vibrations typical of boom-lift operation. An undersized or incorrect-grade substitute risks loosening or failure in the field.
- Genuine Genie OEM Part — Sourced directly through Genie's OEM supply chain, this screw carries the confidence of an authorized replacement built for these machines — not a generic hardware-store equivalent.
A flat head socket screw is a machine fastener with a countersunk head designed to sit flush with or below the surface of the mating component when fully driven. The flat head profile prevents the fastener from protruding into adjacent moving parts or structural clearances — a characteristic that matters in the tight assemblies found on boom lifts. When a fastener of this type is missing, stripped, or installed at an incorrect grade, the joint it holds can shift or loosen over time, affecting the structural integrity of the assembly it secures. Replacing a worn or damaged screw with the correct OEM part restores the joint to its original specification.
Part Details
| Part Number | 1259857GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Flat Head Socket Screw, 3/8-16 x 1.75, F835, ZAG |
Compatibility & Fitment
| Name | Model |
|---|---|
| S-40 | S-40 |
| S-45 | S-45 |
| Z-51/30J | Z-51/30J |
| 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-45 XC | Z-45 XC |
| Z-45/25 IC | Z-45/25 IC |
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.
