The Multiquip EM23305 is a genuine OEM Screw HHF M12-1.75 X 30 8.8 Patch designed for a range of Multiquip equipment including submersible pump models ST-45HRM and ST-70, ride-on power trowel models HHXD5 and HHXG5, hydraulic ride-on trowel MD82, and mechanical ride-on trowels HHXDF4 and HHXDF5. As a direct OEM replacement, EM23305 is sourced to the exact specification used during original assembly, ensuring it seats and torques correctly without guesswork. Verify your model code against the fitment list before ordering to confirm compatibility with your specific machine configuration.
Key Features
- Correct Grade and Thread Specification — M12-1.75 x 30 metric coarse thread at Grade 8.8 tensile strength, matching the original fastener spec for proper clamp load and joint integrity.
- Patch-Lock Thread Coating — The factory-applied patch coating provides controlled prevailing torque, locking the fastener in place under vibration without requiring a separate locking nut or adhesive.
- Broad Cross-Family Fitment — A single OEM part number covering submersible pumps (ST-45HRM, ST-70), ride-on trowels (HHXD5, HHXG5, MD82, HHXDF4, HHXDF5) — confirm your model before ordering.
- Genuine OEM Sourcing — Manufactured to Multiquip's original assembly standards, so thread engagement depth and head dimensions are identical to the fastener your machine left the factory with.
- Structural Connection Reliability — A correct-grade fastener at the right torque value maintains the clamping force that keeps critical assemblies aligned and secure under load and vibration.
- Direct Assembly Replacement — Hex head flange (HHF) profile installs with standard metric tooling, fitting the same clearance and bearing surface as the original without modification.
A hex head flange screw combines a standard hex drive head with an integrated flanged washer face, distributing clamping load across a wider surface area than a plain hex bolt. The Grade 8.8 designation indicates a medium-high carbon steel fastener heat-treated to deliver a minimum tensile strength of 800 MPa, making it suitable for structural and mechanical joints that experience dynamic loads. The patch coating — a dry, pre-applied thread-locking compound bonded to a portion of the thread — provides resistance to loosening from vibration, which is critical on equipment like power trowels and pumps that operate under sustained mechanical stress. A worn, stripped, or incorrect-grade fastener in these positions can allow joints to shift, leading to misalignment, accelerated wear on mating components, or fastener failure.
For fitment questions or help confirming this part is correct for your machine, contact the DHS Equipment team.
Part Details
| Part Number | 23305 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Screw HHF M12-1.75 X 30 8.8 Patch |
Compatibility & Fitment
| Name | Model |
|---|---|
| Submersible Pumps | ST-45HRM |
| Submersible Pumps | ST-70 |
| Whiteman Ride-On Power Trowels | HHXD5 |
| Whiteman Ride-On Power Trowels | HHXG5 |
| Hydraulic Ride-On Power Trowels | MD82 |
| Mechanical Ride-On Trowels | HHXDF4 |
| Mechanical Ride-On Trowels | HHXDF5 |
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.
