The Genie 1256857GT Hex Head Flange Screw, 3/8-16 x.625 is a genuine OEM fastener built for a wide range of Genie telescopic boom lifts, articulating boom lifts, and scissor lifts. As an OEM part, this screw is manufactured to the same dimensional and material standards as the hardware installed at the factory, ensuring proper thread engagement and clamping force in every application. It fits Genie S and SX series telescopic booms, Z and ZX series articulating booms, GS series scissor lifts, and TZ trailer-mounted articulating booms. Before ordering, cross-reference part number 1256857GT against your machine's parts manual to confirm it is the correct fastener for your specific unit and assembly point.
Key Features
- OEM-Grade Material and Dimensional Conformity — Manufactured to Genie OEM specifications with a Grade 8 rating and ZAG (zinc-alloy) coating for corrosion resistance and consistent clamping performance.
- Integrated Flange Design — The built-in flange distributes clamping load evenly across the mating surface, eliminating the need for a separate washer and reducing the risk of surface damage or fastener loosening under vibration.
- Broad Equipment Compatibility — Fits Genie S and SX series telescopic boom lifts, Z and ZX series articulating boom lifts, GS series scissor lifts, and TZ trailer-mounted booms.
- Exact Thread Specification — Cut to a 3/8-16 thread pitch at .625 inch length, matching the OEM fastener precisely so it installs directly into existing threaded holes without modification.
- Structural Integrity on the Job — A fastener that is worn, stripped, or of the wrong grade compromises the structural connection it secures; replacing it with the correct OEM part restores the joint to its intended holding strength.
A hex head flange screw combines a standard hex-drive bolt head with an integral circular flange that acts as a built-in washer. This design spreads the clamping force over a wider bearing area, helping the fastener stay secure under the load and vibration common in aerial lift and scissor lift operation. When a fastener in this role is damaged, corroded, or missing, the joint it holds can work loose, compromising the integrity of the assembly it secures. Replacing it with the correct OEM screw — confirmed by cross-referencing part number 1256857GT in your parts manual — restores the connection to its original specification.
Part Details
| Part Number | 1256857GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Hex Head Flange Screw, 3/8-16 x .625, 8, ZAG |
Compatibility & Fitment
| Name | Model |
|---|---|
| SX-150 | SX-150 |
| SX-180 | SX-180 |
| SX-135 XC | SX-135 XC |
| S-40 | S-40 |
| S-45 | S-45 |
| S-80 XC | S-80 XC |
| S-85 XC | S-85 XC |
| S-80 HF | S-80 HF |
| S-85 HF | S-85 HF |
| SX-105 XC | SX-105 XC |
| SX-125 XC | SX-125 XC |
| S-85 XC FE | S-85 XC FE |
| S-85 XC E | S-85 XC E |
| GS-3384 | GS-3384 |
| GS-3390 | GS-3390 |
| GS-4390 | GS-4390 |
| GS-5390 | GS-5390 |
| TZ-34/20 | TZ-34/20 |
| Z-135/70 | Z-135/70 |
| Z-51/30J | Z-51/30J |
| Z-45/25 | Z-45/25 |
| Z-45/25J IC Power | Z-45/25J IC Power |
| ZX-135/70 | ZX-135/70 |
| Z-80/60 | Z-80/60 |
| Z-45 XC | Z-45 XC |
| Z-45/25 IC | Z-45/25 IC |
| Z-34/22 IC | Z-34/22 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.
