NUT, LP NYLOCK, 1/4-20

The Genie 6889GT is a genuine OEM Low Profile Nylock Nut, 1/4-20 built for an exceptionally wide range of Genie and Terex equipment, including GS scissor lifts, S and Z series boom lifts, GTH telehandlers, light towers, and personnel and material lifts. As a direct OEM replacement, this nut meets the same dimensional and material standards as the original hardware, ensuring a secure, rattle-free connection in the applications it was designed for. Cross-reference part number 6889GT against your Genie parts manual to confirm the correct position and quantity before ordering. Whether you are completing a routine service or restoring a fastener lost during a repair, this part ships as a ready-to-install component with no additional preparation required.

Key Features

• Nylon-Insert Locking Action: — The low profile nylon collar grips the thread under vibration, resisting loosening without the need for additional thread-locking compounds.
• Genuine OEM Material Spec: — Manufactured to Genie's original hardware specification, so thread pitch, material grade, and nut height match the fastener positions this nut occupies across the product range.
• Broad Cross-Machine Compatibility: — Fits Genie GS scissor lifts, S and SX telescopic booms, Z and ZX articulating booms, GTH telehandlers, TML and AL light towers, and a wide variety of Genie personnel and material lift lines.
• Low Profile Design Where Clearance Is Tight: — The reduced-height profile is specified in applications where a standard hex nut would foul adjacent hardware or panels — using the correct profile keeps the assembly within designed clearances.
• Structural Connection Integrity: — On aerial work platforms and boom lifts, loose or missing fasteners can compromise structural and mechanical connections; replacing worn or lost hardware with the correct OEM nut restores the joint to its designed clamping load.

A low profile Nylock nut is a one-piece prevailing-torque fastener that combines a standard hex nut body with a nylon locking insert at the top of the thread. When tightened, the nylon collar deforms slightly around the bolt threads, creating resistance that prevents the nut from backing off under vibration or dynamic loads — a common condition on mobile aerial equipment operating on uneven ground. The low profile variant is dimensionally shorter than a standard Nylock nut, making it the correct choice in assemblies where vertical clearance is restricted. If this nut loosens or goes missing, the joint it secures can shift, leading to misalignment, accelerated wear on surrounding components, or loss of clamping force in safety-critical connections.

Part Details

Compatibility & Fitment

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.