Multiquip EM915105 Screw HHC 3/8-16 x 1 Grade 8

The Multiquip EM915105 is a genuine OEM Screw HHC 3/8-16 x 1 Grade 8 designed for a wide range of Multiquip pavement saws, flat saws, and ride-on power trowels. As a direct OEM replacement, EM915105 is held to the same dimensional and tensile specifications as the original hardware used on these machines at the factory. Confirmed fitment spans the SP, PS, CS, and STX flat saw and pavement saw families, as well as HTX44 and STX55 series Whiteman ride-on power trowels.

Key Features

• Grade 8 Tensile Strength — The Grade 8 rating delivers high-strength clamping force suited to the structural and drivetrain fastening demands found across Multiquip cutting and finishing equipment.
• Genuine OEM Part — Sourced directly from Multiquip, EM915105 meets the exact thread pitch, diameter, and length tolerances specified for these assemblies — no re-drilling or chasing required.
• Broad Saw and Trowel Compatibility — Fits SP, PS, and CS pavement and flat saw models alongside HTX44K4, HTX44K5, HTX44Y4, HTX44Y5, STX55J6, and STX55Y6 ride-on trowels.
• Correct Thread Engagement — The 3/8-16 UNC thread form and 1-inch grip length ensure proper engagement depth, preventing fastener backing out under the sustained vibration loads typical of saw and trowel operation.
• Structural Fastening Safety — On cutting and compaction equipment, under-rated or incorrect fasteners can lead to component loosening during operation. Using the specified Grade 8 hardware maintains the integrity of critical structural joints.

A hex head cap screw is a structural fastener used throughout heavy-duty equipment assemblies to clamp components together under controlled torque. The 3/8-16 designation refers to the thread diameter and coarse thread pitch, while the Grade 8 rating indicates a high-strength alloy steel construction capable of withstanding significant tension and shear forces. When a fastener of the wrong grade, length, or thread form is used as a substitute, clamping force is compromised, which can cause joint movement, accelerated wear of mating parts, and eventual component failure — particularly problematic on vibrating equipment like pavement saws and power trowels.

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.