Multiquip EM456 Screw HFS M10-1.5 x 20 Class 8.8

The Multiquip EM456 is a genuine OEM Screw HFS M10-1.5 x 20 Class 8.8 designed for a wide range of Multiquip and Whiteman equipment, including MD80 and MD105 hydraulic ride-on power trowels, MVH-series reversible plate compactors, walk-behind trowel models such as the B46, HDA-Series, and J-Series, PRX hybrid ride-on power floats, ST-series submersible pumps, and SP-series flat saws. As a direct OEM replacement, EM456 meets the original engineering specification for thread pitch, head form, and tensile grade — no substitution guesswork required. This screw is sourced directly through Multiquip's authorized parts network and is the same fastener installed at the factory across all compatible equipment families. Confirm your model code against the fitment list before ordering to ensure the correct application.

Key Features

• Grade 8.8 Tensile Strength — Class 8.8 rating delivers the clamping force and shear resistance required for structural and mechanical fastening points on heavy-duty compaction, troweling, and pump equipment.
• Correct Thread Specification — M10-1.5 thread pitch matches OEM-tapped holes exactly, threading in cleanly without risk of cross-threading or misfit common with non-spec substitutes.
• Broad Multi-Machine Fitment — A single OEM part number covering MD80, MD105, MVH128GH through MVH508GV, PRX, B46, HDA-Series, J-Series, LD-Series, ST4, ST6, and SP-series saws keeps your parts inventory lean.
• Genuine OEM Sourcing — Supplied through Multiquip's authorized distribution channel, EM456 carries the same material and dimensional certification as the fastener originally assembled into each machine.
• Torque-Ready HFS Head Form — The hex flange screw (HFS) head integrates a load-spreading flange that distributes clamp load evenly, reducing the risk of surface damage or fastener loosening under vibration.

A hex flange screw (HFS) combines a standard hex drive head with an integral flange that acts as a built-in washer, evenly distributing clamping force across the mating surface when torqued. In vibration-intensive equipment such as plate compactors and concrete trowels, fasteners are subjected to continuous cyclic loading that can work loose standard bolts over time — the flange head resists this by increasing bearing surface area and maintaining clamp load more consistently. When a fastener of the wrong grade, thread pitch, or head style is used as a substitute, it can lead to joint movement, stripped threads, or component loosening that compromises both machine performance and operator safety.

Part Details

Compatibility & Fitment

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.