The Multiquip 12318 is a genuine OEM HHC Screw 1/2-13 X 2-3/4 designed for Whiteman ride-on power trowels, ride-on power floats, and ride-on roller screeds including the STXDF, HTX6H, PRX, WRSPUDF, and WRS5200 series. As a direct OEM replacement, part 12318 meets the exact material grade and dimensional spec Multiquip specifies for these machines, so it seats and torques correctly the first time. DHS Equipment stocks this fastener as a genuine Multiquip component, giving you confidence that the hardware you receive matches what left the factory. Confirm your model code against the fitment list before ordering to ensure a correct match.
Key Features
- Correct Grade and Thread Spec — 1/2-13 UNC threading and 2-3/4 in. length matched to Multiquip's torque requirements for structural fastener locations on trowels and screeds.
- Genuine OEM Component — Sourced directly from Multiquip, this screw carries the same material specification as the hardware installed at the assembly line.
- Broad Fitment Across Trowel and Screed Lines — Compatible with STXDF, HHXDF4-DF5, STX6H, HTX6H, PRX, HTXG6DF, WRSPUDF, WRS5200, and WRS5200DFPU machines.
- Structural Fastener Integrity — Using the correctly sized and graded screw prevents joint movement, elongation, and component loosening under the continuous vibration loads generated during finishing operations.
- Direct Drop-In Replacement — Matches the OEM hole pattern and head dimensions, requiring only standard tooling for removal and installation.
A hex head cap (HHC) screw is a structural fastener used to clamp machine components together with a controlled, measurable torque. On ride-on trowels and roller screeds, fasteners like the Multiquip 12318 secure panels, guards, and mechanical assemblies that are subjected to constant vibration and load cycling during operation. Using a fastener with the wrong thread pitch, diameter, or length can result in under-clamping, thread stripping, or component movement — all of which can lead to accelerated wear or mechanical failure at the joint.
Part Details
| Part Number | 12318 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | HHC Screw 1/2-13 X 2-3/4 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Whiteman Ride-On Power Trowels | STXDF |
| Whiteman Ride-On Power Trowels | HHXDF4-DF5 |
| Whiteman Ride-On Power Trowels | STX6H |
| Whiteman Ride-On Power Trowels | HTX6H |
| Ride-On Power Float | PRX |
| Whiteman Ride-On Power Trowels | HTXG6DF |
| Ride-On Roller Screeds | WRSPUDF |
| Ride-On Roller Screeds | WRS5200 |
| Ride-On Roller Screeds | WRS5200DFPU |
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.
