The Genie 139868GT is a genuine OEM Hex Head Cap Screw, 5/8-11 x 6.50 GR8 BO designed for the Z-51/30J articulating boom lift. As a factory-sourced fastener, this screw is manufactured to the exact thread pitch, length, grade, and finish specified by Genie for this application. Cross-reference part number 139868GT against your Z-51/30J parts manual to confirm it is the correct fastener for your specific joint or assembly before ordering.
Key Features
- Grade 8 Strength Rating — A GR8 designation means this screw meets the high tensile and proof-load requirements of a heavy-duty fastener, appropriate for structural and high-stress joints on aerial equipment.
- Exact Thread and Length Specification — Cut to 5/8-11 thread pitch and 6.50 inches in length, this screw matches the OEM specification exactly so it seats and torques correctly without modification.
- Black Oxide (BO) Finish — The black oxide coating provides a corrosion-inhibiting surface treatment consistent with the original Genie specification for this fastener.
- Genuine OEM Part — Sourced directly from Genie, this screw carries the same part number — 139868GT — used in the official parts manual, eliminating guesswork when ordering.
- Confirmed Fitment for Z-51/30J — Designed specifically for the Z-51/30J articulating boom lift, so you can order with confidence that this is the correct OEM replacement fastener for that machine.
A hex head cap screw is a high-strength threaded fastener used to clamp or secure structural components on the machine. Grade 8 fasteners like this one are specified for joints that must withstand significant load, vibration, or shear forces during operation. Using the correct grade, thread, and length is essential — an undersized or lower-grade substitute can work loose or fail under load, compromising the integrity of the assembly it secures. Replace any damaged or missing screw with the correct OEM part to maintain the joint as designed.
Part Details
| Part Number | 139868GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Hex Head Cap Screw, 5/8-11 x 6.50 GR8 BO |
Compatibility & Fitment
| Name | Model |
|---|---|
| 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.
