The Multiquip 45519 Screw HHF M12-1.75 X 30 10.9 is a genuine OEM fastener designed for PRX series hybrid ride-on power float equipment. As a direct OEM component sourced through Multiquip's authorized parts network, 45519 delivers the exact thread pitch, shank length, and property class 10.9 tensile rating required by the original engineering specification. This high-strength hex flange screw is a confirmed fitment for PRX hybrid ride-on trowels, making it the correct choice when servicing or rebuilding these machines. DHS Equipment supplies this part as a genuine Multiquip replacement so you can get your trowel back to work with confidence.
Key Features
- Property Class 10.9 High-Strength Rating — Engineered to the 10.9 tensile class, this screw resists shear and fatigue loads typical of trowel drivetrain and blade assembly mounting points.
- M12-1.75 x 30mm Hex Flange Head — The integrated flange distributes clamping load across a wider bearing surface, eliminating the need for a separate washer and ensuring a secure, consistent clamp-up.
- Genuine OEM Part — Manufactured to Multiquip's original material and dimensional specifications, this fastener matches the exact grade and geometry used during original assembly of the PRX.
- Confirmed PRX Series Fitment — Verified fitment for Multiquip PRX hybrid ride-on power float equipment; cross-reference part number 45519 against your machine's parts manual before ordering.
- Critical Structural Integrity — Using a fastener of the incorrect property class or thread pitch on a ride-on trowel can lead to joint loosening under vibration, premature wear, or component separation during operation.
A hex flange screw serves as a high-load structural fastener that secures major assemblies and load-bearing components together on the machine. The M12-1.75 thread specification and 30mm grip length are engineered to achieve a precise clamp force when torqued to spec, keeping critical joints tight under the sustained vibration and dynamic loads generated during concrete finishing. When a fastener of the wrong grade or size is used — or when an original fastener is worn, stretched, or damaged — joint integrity is compromised, which can accelerate wear on mating components or lead to unexpected mechanical failure mid-operation.
Part Details
| Part Number | 45519 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Screw HHF M12-1.75 X 30 10.9 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Ride-On Power Float | PRX |
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.
