The Genie 1257834GT Hex Head Flange Screw is a genuine OEM fastener built for Genie S-series telescopic boom lifts, the SX-180 super-boom, and the Z-62/40 articulating boom lift. Manufactured to DIN 6921 at property class 10.9 with a ZAB finish, this screw meets the exact torque and material specifications called out in the Genie parts manual. Confirm part number 1257834GT against your machine's parts manual to ensure it is the correct item for your unit before ordering.
Key Features
- High-Strength Grade 10.9 Construction — Property class 10.9 rating delivers the clamping load required for structural and mechanical connections on aerial boom lifts, where fastener integrity directly affects machine reliability.
- DIN 6921 Hex Flange Head — The built-in flange distributes load across a wider bearing surface, reducing the need for a separate washer and providing consistent seating on mating components.
- ZAB Corrosion-Resistant Finish — The zinc-aluminum-based coating protects the screw against rust and environmental exposure on machines working in outdoor and variable-weather conditions.
- Direct OEM Replacement — Dimensioned at M12-1.75X45 to match the original Genie specification, this screw installs directly in place of the factory part without reworking the mounting hole or thread.
- Broad Boom Lift Compatibility — Fits S-60, S-60 XC, S-60 TRAX, S-60 HC, S-60 HF, S-65, S-65 XC, S-65 TRAX, S-65 HF, SX-180, and Z-62/40 — covering a wide range of Genie telescopic and articulating boom lift configurations.
- Structural Fastener Integrity — A worn, stripped, or incorrect fastener can allow components to shift or loosen under load. Using the correct OEM-spec screw maintains the clamping force the machine was engineered around.
A hex head flange screw combines a standard hex head with an integrated circular flange that acts as a built-in load-spreading washer. On aerial boom lifts, fasteners like this one are used where consistent clamping force and resistance to loosening under vibration are essential. When a fastener is missing, under-torqued, or substituted with an incorrect grade, the joint it secures may shift or work loose during operation — making it important to replace any failed hardware with a part that matches the original diameter, thread pitch, length, and strength class.
Part Details
| Part Number | 1257834GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Hex Head Flange Screw, M12-1.75X45, DIN6921, 10.9, ZAB |
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 |
| SX-180 | SX-180 |
| Z-62/40 | Z-62/40 |
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.
