The Genie 39478GT is a genuine OEM Hex Head Cap Screw, 3/8-16 x 2 Full Thread built for Genie GS scissor lifts and Z-series articulating boom lifts. As a direct OEM replacement, this fastener matches the exact thread pitch, length, and full-thread specification called out in Genie's parts documentation — no substitutions, no guesswork. It is confirmed to fit the GS-1530, GS-1930, GS-2046, GS-2646, and GS-3246 scissor lifts, as well as the Z-135/70 and ZX-135/70 articulating booms. Cross-reference part number 39478GT against your machine's parts manual to verify it is the correct item for your application before ordering.
Key Features
- Genuine OEM Specification — Manufactured to Genie's exact 3/8-16 x 2 full-thread standard, ensuring correct torque loading and thread engagement at every fastened joint.
- Full-Thread Design — The full-thread profile maximizes thread engagement across the entire shank length, providing consistent clamping force in all installed positions.
- Direct OEM Replacement — Drops in as a like-for-like replacement with no rework needed; thread form, grade, and dimensions match the original fastener exactly.
- Broad Genie Fitment — Fits multiple GS scissor lift models (GS-1530 through GS-3246) and the Z-135/70 and ZX-135/70 articulating boom lifts from a single part number.
- Structural Integrity — A correctly torqued fastener keeps structural assemblies properly secured; a worn, stripped, or incorrect screw can allow movement where none is intended, leading to component damage or unsafe conditions on an aerial lift.
A hex head cap screw is a threaded fastener used to clamp or secure two or more components together, driven by a wrench applied to its six-sided head. The 3/8-16 designation identifies the major thread diameter and thread pitch, while the 2-inch length and full-thread specification mean threads run the entire length of the shank — maximizing the contact area available to engage a tapped hole or nut. When a fastener in this position stretches, strips, or is substituted with an incorrect grade or thread, the joint can loosen under load or vibration, which on an aerial lift can compromise the integrity of the assembly it holds together. Replacing it with the correct Genie OEM part restores the joint to its original specification.
Part Details
| Part Number | 39478GT |
|---|---|
| Brand | Genie |
| Part Type | Genuine OEM |
| Description | Hex Head Cap Screw, 3/8-16 x 2 Full Thread |
Compatibility & Fitment
| Name | Models |
|---|---|
| GS-1530 | GS-1530 |
| GS-1930 | GS-1930 |
| GS-2046 | GS-2046 |
| GS-2646 | GS-2646 |
| GS-3246 | GS-3246 |
| 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.
