The Genie 77780GT Socket Head Cap Screw, 3/4-10 x 3.75, A574 is a genuine OEM fastener built for the Z-135/70 and ZX-135/70 articulating boom lifts. Sourced directly from Genie, this screw is manufactured to the A574 alloy steel specification, ensuring it meets the exact grade and dimensional standards required for the application. Cross-reference 77780GT against your machine's parts manual to confirm it is the correct item for your unit before ordering.
Key Features
- A574 Alloy Steel Construction — Manufactured to the A574 high-strength alloy steel standard, delivering the tensile strength and hardness grade Genie specifies for this fastener position.
- Exact Thread and Dimensional Spec — 3/4-10 UNC thread pitch and 3.75-inch length match the OEM specification precisely, so the screw seats and torques correctly without modification.
- Socket Head Drive — The socket head cap configuration allows installation and removal with a hex key in confined or recessed mounting locations where a standard wrench cannot reach.
- Confirmed Fitment — Designed for the Z-135/70 and ZX-135/70 articulating boom lifts; verify against your parts manual before ordering.
- Genuine OEM Part — Supplied by Genie as a genuine OEM replacement, ensuring the correct material grade and geometry are maintained every time the fastener is serviced.
A socket head cap screw is a high-strength fastener used to clamp and secure structural or mechanical components in place. The socket head design allows it to be driven with an internal hex key, making it well suited to tight or recessed mounting locations found throughout large articulating boom lifts like the Z-135/70 and ZX-135/70. Using the correct grade and size fastener — in this case an A574 alloy steel screw at 3/4-10 x 3.75 — is critical: an underspec or incorrectly sized fastener in a structural joint can loosen under load or vibration, compromising the integrity of the connection and the safe operation of the machine.
Part Details
| Part Number | 77780GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Socket Head Cap Screw, 3/4-10 x 3.75, A574 |
Compatibility & Fitment
| Name | Model |
|---|---|
| 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.
