Multiquip EM492366 Screw HHC 5/16-18 x 1-1/2

The Multiquip EM492366 is a genuine OEM Screw HHC 5/16-18 x 1-1/2 designed for a wide range of Multiquip and Whiteman power buggies, concrete pumps, mixers, and masonry saws including WBH-16, WBH-16E, WBH-16EF, WBH-16EAWD, WBH-16EAWDF, WBH-21EF, WBH-21EFP, WBH21EPA, WPB16, WPB16E, WTB-16, LS-40, LS40D, LS40TD, LS50TD, LS60TD, LS400, LS450, LS500, LS600, LS600P, C30HDZ, ST-45HRM, EM120P, EM120S, WM120PH, WM120SH, MS120H13, and MS120HD13 equipment. As a genuine OEM part sourced directly through Multiquip, this fastener is manufactured to the exact specification used in original production, ensuring it threads and seats correctly in its designated application. Sourcing the correct fastener by part number EM492366 eliminates the guesswork that comes with finding a generic substitute and confirms you are installing the right hardware for your specific machine.

Key Features

• Genuine OEM Fastener Specification — Manufactured to the exact thread pitch, head geometry, and material grade used in original Multiquip production builds — not a generic hardware-bin substitute.
• Correct Thread Engagement — The 5/16-18 coarse thread profile and 1-1/2 inch length are matched to the specific clamping depth and torque requirements of the original fastener location.
• Broad Cross-Model Compatibility — Verified for WBH and WPB series power buggies, LS and C30HDZ concrete pumps, EM and WM mixers, and MS masonry saws across multiple configurations.
• Structural Integrity at the Joint — A correctly specified screw maintains proper clamping load at its assembly point; an undersized, over-torqued, or mismatched fastener can lead to joint loosening, component misalignment, or hardware failure under load.
• Verified Part Number Traceability — Ordering by OEM part number EM492366 confirms you are receiving the correct fastener and eliminates fitment risk across this equipment range.

A hex head cap screw serves as a precision fastener that clamps two or more components together at a specific torque value, maintaining the structural integrity of an assembly throughout the machine's operating cycle. The 5/16-18 thread designation indicates a coarse Unified National thread form — one of the most common and reliable thread standards in equipment manufacturing — while the 1-1/2 inch length determines how far the fastener engages the mating component. When a fastener of this type loosens, stretches beyond its elastic limit, or is replaced with an incorrect grade or length, the clamped joint can shift or separate, leading to component wear, misalignment, or mechanical failure that extends well beyond the fastener itself.

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.