The Multiquip 4603 is a genuine OEM Hex Head Flange Screw 1/4-20 x 1 designed for a wide range of Multiquip and Whiteman equipment including WRS ride-on roller screeds, HTX and HHN ride-on power trowels, and the MQ62TK trash pump. As a factory-authorized replacement, this fastener meets the exact dimensional and material standards of the original hardware. Part number 4603 is a direct-fit replacement, ensuring correct installation without the guesswork that comes with sourcing generic hardware. Keep critical fastener positions properly torqued and secure by specifying the correct OEM part every time.
Key Features
- OEM-Grade Fastener Material — Manufactured to the same grade, thread specification, and flange geometry as the original Multiquip hardware, ensuring consistent clamp load and thread engagement.
- 1/4-20 x 1 Thread and Length Match — Correct thread pitch, shank length, and flange diameter allow this screw to seat flush and torque to spec in the original mounting holes without rework.
- Broad Equipment Compatibility — Fits WRSPUDF, WRS5200, WRS5200DFPU ride-on roller screeds; HTXG6DF, HHXDF4-DF5, HHNG5, HHXD5, HHN34TVD ride-on power trowels; and the MQ62TK trash pump.
- Flange Head Design Distributes Load — The integrated flange spreads clamping force across the joint surface, resisting loosening under vibration — a critical advantage on compaction and troweling equipment that operates under continuous dynamic loads.
- Prevents Fastener-Related Failures — Using an undersized or incorrect-grade substitute risks stripping threads, cracking flanges, or losing critical panel and component connections during operation.
A hex head flange screw combines a standard hex bolt head with a built-in flanged washer base, which distributes clamping force over a wider surface area and helps resist backing out under vibration. On equipment like ride-on screeds and power trowels — which generate sustained mechanical vibration during operation — maintaining correct fastener integrity is essential to keeping panels, guards, and structural components securely attached. When a fastener like this fails or is replaced with an incorrect substitute, joint looseness can develop quickly, leading to accelerated wear on mating surfaces and potential loss of component alignment.
Part Details
| Part Number | 4603 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Hex Head Flange Screw 1/4-20 x 1 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Ride-On Roller Screeds | WRSPUDF |
| Ride-On Roller Screeds | WRS5200 |
| Ride-On Roller Screeds | WRS5200DFPU |
| Whiteman Ride-On Power Trowels | HTXG6DF |
| Whiteman Ride-On Power Trowels | HHXDF4-DF5 |
| Whiteman Ride-On Power Trowels | HHNG5 |
| Whiteman Ride-On Power Trowels | HHXD5 |
| Whiteman Ride-On Power Trowels | HHN34TVD |
| Trash Pumps | MQ62TK |
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.
