Multiquip EM492397 Bolt 1/2" NC 2-1/2" G5

The Multiquip EM492397 Bolt 1/2" NC 2-1/2" G5 is a genuine OEM fastener engineered for a wide range of Multiquip concrete pump, concrete mixer, mortar mixer, and roller equipment. This grade 5 hex bolt delivers the clamping strength and dimensional accuracy required to keep critical assemblies properly secured across demanding jobsite conditions. EM492397 is a direct OEM replacement confirmed for models including LS-40, LS40TD, LS50TD, LS300, LS400, LS500, LS600, MC64, MC94, EC-62, CMS-64, WC-62, EM12M, and R2000H series machines. Sourcing the correct grade and thread specification matters — this bolt meets the original torque and shear requirements specified for these assemblies.

Key Features

• Grade 5 Tensile Strength — Medium-carbon steel construction delivers the minimum proof load and tensile strength specified for structural fastener applications in concrete pump and mixer assemblies.
• Correct Thread Form and Length — 1/2" NC (National Coarse) thread pattern and 2-1/2" length match the OEM specification, ensuring full thread engagement without bottoming out or misalignment.
• Genuine OEM Part — Supplied as an authorized Multiquip OEM component, manufactured to the same standard as the bolt originally installed at the factory.
• Broad Cross-Family Fitment — Verified for LS-series concrete pumps (LS40, LS50TD, LS300, LS400, LS500, LS600), MC/EC/CMS/WC concrete mixers, EM12M mortar mixers, and the R2000H static roller.
• Prevents Fastener Failure in High-Vibration Service — Using an undersized or incorrect-grade bolt in mixer drum, pump frame, or roller applications risks loosening and structural failure under continuous vibration loads.

A Grade 5 hex bolt is a medium-strength structural fastener used to clamp and secure major components — such as mixer drums, pump frames, gearbox mounts, and roller assemblies — under sustained mechanical load and vibration. The National Coarse thread form provides reliable engagement and is less susceptible to cross-threading during field installation. When a bolt of the wrong grade, thread pitch, or length is substituted, it can loosen prematurely, stretch beyond its proof load, or fail to develop the clamping force the joint requires — leading to component movement, accelerated wear on surrounding parts, and potential structural damage to the machine.

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.