The Genie 22578GT is a genuine OEM Hex Head Cap Screw, M6 x 20mm, Grade 8.8, built for a wide range of Genie equipment including S-series telescopic boom lifts, Z-series articulating boom lifts, GS scissor lifts, and GTH telehandlers, as well as select light towers, material lifts, and trailer-mounted booms. Sourced directly from Genie, this screw meets the exact dimensional and material specifications of the original hardware it replaces. Cross-reference part number 22578GT against your machine's parts manual to confirm it is the correct fastener for your application before ordering.
Key Features
- Grade 8.8 Fastener Integrity — Manufactured to Grade 8.8 tensile strength, delivering the correct clamping force and shear resistance the original design requires.
- Exact OEM Dimensions — M6 x 20mm threading and head geometry match the original specification, so the screw seats and torques correctly without modification.
- Broad Genie Compatibility — Fits Genie S-series telescopic booms, Z-series articulating booms, GS scissor lifts, GTH telehandlers, and additional Genie equipment families.
- Genuine OEM Part — Supplied by Genie to ensure dimensional conformity and material grade consistency with every other fastener in the assembly.
- Direct Hardware Replacement — Replaces worn, stripped, or damaged screws in the assembly with a part that installs using standard tooling.
A Hex Head Cap Screw is a general-purpose threaded fastener used throughout equipment assemblies to secure components together under a specified clamping load. The Grade 8.8 designation indicates the steel has been heat-treated to a defined tensile strength, making it appropriate for structural and mechanical connections that must hold under vibration and load cycling. A screw that is stripped, under-torqued, or replaced with an incorrect grade can allow joint movement, component loosening, or fastener failure — any of which may require additional repair work to correct. Using the correct OEM-specified fastener keeps the joint within its designed parameters.
Part Details
| Part Number | 22578GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Hex Head Cap Screw, M6 x 20mm, Gr8.8 |
Compatibility & Fitment
| Name | Model |
|---|---|
| RL4 Vertical Mast | RL4 Vertical Mast |
| Super Hoist | Super Hoist |
| S-80X | S-80X |
| S-80 | S-80 |
| S-85 | S-85 |
| 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-100HD | S-100HD |
| S-120HD | S-120HD |
| 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 |
| S-3800 | S-3800 |
| S-3200 | S-3200 |
| S-120 | S-120 |
| S-125 | S-125 |
| S-100 | S-100 |
| S-105 | S-105 |
| GS-3390 | GS-3390 |
| GS-4390 | GS-4390 |
| GS-5390 | GS-5390 |
| GS-3384 | GS-3384 |
| GTH-1048 | GTH-1048 |
| GTH-1056 | GTH-1056 |
| GTH-636 | GTH-636 |
| GTH-844 | GTH-844 |
| TMZ-34/19 | TMZ-34/19 |
| TMZ-50/30 | TMZ-50/30 |
| TMZ-17/10 | TMZ-17/10 |
| Z-60/34 | Z-60/34 |
| 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 |
| Z-80/60 | Z-80/60 |
| Z-45/25 IC | Z-45/25 IC |
| Z-45/25J IC | Z-45/25J IC |
| ZX-135/70 | ZX-135/70 |
| Z-45/22 | Z-45/22 |
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.
