The Multiquip 12591 is a genuine OEM Flush Head Screw 1/2-13 x 3 designed for STH series hydrostatic ride-on trowels. As a direct OEM replacement, this fastener is manufactured to the exact thread specification, head profile, and length required by the original equipment build. Verified fitment for STH hydrostatic ride-on trowel models means no guesswork when ordering hardware for your machine. DHS Equipment stocks Multiquip OEM parts so you can get back to work with confidence.
Key Features
- OEM Thread Accuracy — Manufactured to the exact 1/2-13 thread pitch and 3-inch length specified for the original STH assembly, ensuring correct torque engagement and secure clamping.
- Flush Head Profile — The flush head design seats flush with or below the mating surface, maintaining the intended clearance and surface geometry of the trowel assembly.
- Direct OEM Replacement — Replaces part 12591 without re-drilling, retapping, or substitution, dropping straight into the existing fastener position.
- STH Series Fitment — Confirmed for STH hydrostatic ride-on trowels, covering the core hydrostatic trowel line in the Multiquip portfolio.
- Structural Integrity Under Vibration — A correctly spec'd fastener prevents loosening, misalignment, or component separation during the high-vibration operating cycles typical of ride-on trowel use.
A flush head screw is a threaded fastener designed so that its head sits level with or recessed into the surrounding material when fully installed, eliminating protrusions that could interfere with adjacent components or moving parts. In a ride-on trowel, fasteners like the part are used to secure panels, guards, and structural assemblies where a low-profile head is critical to maintaining proper fit and clearance. Using an incorrectly sized or mismatched fastener can lead to stripped threads, loose assemblies, and accelerated wear on the components being held in place.
Part Details
| Part Number | 12591 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Flush Head Screw 1/2-13 x 3 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Hydrostatic Ride-On Trowels | STH |
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.
