The Genie 1258778GT is a genuine OEM Hex Head Cap Screw, 1-8X8.5, 5, ZAG built for Genie S-40 telescopic boom lifts and SX-105 XC super-boom lifts. As a direct Genie OEM part, it is manufactured to the same dimensional and material standards as the hardware originally installed on the machine. Cross-reference part number 1258778GT against your machine's parts manual to confirm it is the correct fastener for your application before ordering.
Key Features
- Exact-Specification Fit — The 1-8X8.5 thread and length dimensions replicate the factory fastener, so installation is straightforward with no reworking of the mating hardware.
- Confirmed Fitment — Fits Genie S-40 telescopic boom lifts and SX-105 XC super-boom lifts; verify against your serial number and parts manual before ordering.
- Structural Clamping Integrity — A properly torqued fastener of the correct grade and size keeps joined components secure; substituting an incorrect grade or size risks joint loosening or fastener failure under working loads.
A hex head cap screw is a threaded fastener used to clamp two or more components together with a controlled torque. When a fastener of this type is missing, stripped, or replaced with an incorrect grade or size, the joint it secures can loosen under vibration or working loads, potentially compromising the structural integrity of the assembly it holds together. Using the correct OEM replacement ensures the joint is restored to its intended clamping specification.
Part Details
| Part Number | 1258778GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Hex Head Cap Screw, 1-8X8.5, 5, ZAG |
Compatibility & Fitment
| Name | Models |
|---|---|
| S-40 | S-40 |
| SX-105 XC | SX-105 XC |
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.
