The Genie 81777GT is a genuine OEM Hex Head Cap Screw, 3/8-16 x 7, built for Genie GS scissor lifts and Z series articulating boom lifts. As a direct OEM replacement, this screw is manufactured to the same dimensional and material standards as the original hardware used on these machines. It is confirmed to fit the GS-3384, Z-135/70, Z-80/60, and ZX-135/70, making it a straightforward, no-guesswork choice when servicing these units. Cross-reference part number 81777GT against your machine's parts manual to confirm it is the correct fastener for your application.
Key Features
- Genuine OEM Dimensional Conformity — Manufactured to the exact thread pitch, grade, and length specification of the original fastener, ensuring consistent torque performance and secure clamping.
- Exact-Thread Replacement — The 3/8-16 x 7 specification matches the original fastener precisely, dropping into existing threaded bores without rework or modification.
- Broad Genie Fitment — Compatible with the GS-3384 scissor lift and Z-135/70, Z-80/60, and ZX-135/70 articulating boom lifts, covering a range of Genie equipment families.
- Structural Integrity — A correctly specified fastener holds assemblies together under the dynamic loads and vibration that aerial equipment generates in daily operation. A wrong-grade or undersized screw can work loose and compromise the joint.
- Genuine Genie Part — Sourced directly from Genie's OEM supply chain, so the part number, grade marking.
A hex head cap screw is a fully threaded or partially threaded fastener driven by a wrench or socket on its six-sided head, used to clamp components together or secure assemblies to a structure. On aerial lift equipment, fasteners like this one are found throughout structural joints, pivot points, covers, and sub-assemblies where a dependable, high-strength connection is required. A screw that is the wrong length, thread pitch, or grade can strip threads, fail to clamp correctly, or work loose under vibration — all of which lead to joint failure and unplanned maintenance. Replacing a worn or damaged fastener with the correct OEM part restores the joint to its original specification.
Part Details
| Part Number | 81777GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Hex Head Cap Screw, 3/8-16 x 7 |
Compatibility & Fitment
| Name | Models |
|---|---|
| GS-3384 | GS-3384 |
| Z-80/60 | Z-80/60 |
| Z-135/70 | Z-135/70 |
| ZX-135/70 | ZX-135/70 |
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.
