The Genie 1259857GT is a genuine OEM Flat Head Socket Screw, 3/8-16x1.75, F835, ZAG built for Genie S and Z series boom lifts, including the S-40, S-45, Z-51/30J, Z-45/25J Bi-Energy, Z-45 XC, and Z-45/25 IC. As a direct OEM replacement, this screw matches the original Genie specification exactly — same thread pitch, head profile, grade, and finish — so it drops in without modification. Cross-reference part number 1259857GT against your machine's parts manual to confirm it is the correct fastener for your application before ordering.
Key Features
- Correct Thread and Head Profile — The 3/8-16 thread pitch and flat head socket geometry match the OEM specification, seating flush against the mating surface as intended.
- Genuine OEM Part — Sourced directly from Genie, this fastener meets the same material and dimensional requirements as the hardware installed at the factory.
- Broad Boom Lift Fitment — Compatible with Genie S-series telescopic booms and Z-series articulating booms, covering the S-40, S-45, Z-51/30J, Z-45/25J Bi-Energy, Z-45 XC, and Z-45/25 IC.
- Structural Integrity at Every Joint — A fastener that is the wrong grade, finish, or thread form can back out or fail under load; using the correct OEM screw keeps joints secure and assemblies tight through normal machine operation.
A flat head socket screw is a threaded fastener with a countersunk head profile designed to sit flush with or below the surface of the mating component. The socket drive allows high torque to be applied in recessed or space-constrained locations where a conventional wrench cannot reach. When a fastener of the wrong grade or thread form is used as a substitute, the joint may loosen prematurely or fail to clamp correctly, which can lead to movement, wear, or structural concerns in the assembly it secures. Replacing a damaged or missing screw with the correct Genie 1259857GT restores the joint to its original clamping condition.
Part Details
| Part Number | 1259857GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Flat Head Socket Screw, 3/8-16x1.75, F835, ZAG |
Compatibility & Fitment
| Name | Models |
|---|---|
| S-40 | S-40 |
| S-45 | S-45 |
| Z-45 XC | Z-45 XC |
| Z-45/25 IC | Z-45/25 IC |
| Z-45/25J Bi-Energy | Z-45/25J Bi-Energy |
| Z-51/30J | Z-51/30J |
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.
