The Genie 77051GT Nylock Nut, 3/4-10, Grd.8 is a genuine OEM fastener built for Genie S series telescopic boom lifts, Z series articulating boom lifts, and GTH series telehandlers. Sourced directly from Genie, this nut meets the original equipment specification for thread size, grade, and locking performance. Cross-reference part number 77051GT against your machine's parts manual to confirm it is the correct fastener for your application before ordering.
Key Features
- Nylon-Insert Locking — The nylock collar resists loosening under vibration and repeated load cycles, keeping fastened joints secure through demanding work cycles.
- Correct Thread Specification — Cut to a 3/4-10 UNC thread, this nut installs directly onto the correct mating hardware without rework or thread chasing.
- Genuine OEM Part — Manufactured to Genie's original specification, ensuring dimensional conformity and material grade consistency with the fastener it replaces.
- Broad Fitment Across Genie Families — Compatible with a wide range of Genie S and Z boom lifts and GTH telehandlers, making it a practical stocking item for mixed fleets.
- Structural Integrity on Aerial Equipment — A fastener that has backed off or failed on a boom lift or telehandler can compromise the security of critical joints; replacing worn or damaged nuts with the correct OEM grade is an essential part of scheduled maintenance.
A nylock nut uses an integrated nylon insert to create friction against the mating thread, preventing the nut from backing off under vibration, shock loads, or repeated movement cycles — conditions that are common on mobile aerial equipment operating across uneven terrain. The Grd.8 designation indicates a high-strength steel alloy capable of sustaining the clamping loads found in structural, pivot, and mounting positions throughout a boom lift or telehandler. When a nut of the wrong grade or thread specification is used in one of these positions, joint integrity is compromised; replacing it with part number 77051GT restores the connection to its original clamping performance.
Part Details
| Part Number | 77051GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Nylock Nut, 3/4-10, Grd.8 |
Compatibility & Fitment
| Name | Models |
|---|---|
| GTH-636 | GTH-636 |
| GTH-644 | GTH-644 |
| GTH-842 | GTH-842 |
| GTH-844 | GTH-844 |
| GTH-1044 | GTH-1044 |
| GTH-1056 | GTH-1056 |
| GTH-1244 | GTH-1244 |
| GTH-1256 | GTH-1256 |
| GTH-1544 | GTH-1544 |
| S-60 | S-60 |
| S-65 | S-65 |
| S-65 XC | S-65 XC |
| S-80 J | S-80 J |
| Z-30/20HD | Z-30/20HD |
| Z-34 IC | Z-34 IC |
| Z-45/25 | Z-45/25 |
| Z-45/25 IC | Z-45/25 IC |
| Z-45/25J Bi-Energy | Z-45/25J Bi-Energy |
| Z-45/25J DC | Z-45/25J DC |
| Z-45/25J IC | Z-45/25J IC |
| Z-45/25J IC Power | Z-45/25J IC Power |
| Z-51/30J | Z-51/30J |
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.
