Wacker Neuson 5000164039 Carriage Bolt M6X80 Gr 8.8

The Wacker Neuson is a genuine OEM Carriage Bolt M6X80 Gr 8.8 designed for RD12 and RD12A series tandem rollers. Sourced directly from Wacker Neuson, this bolt meets the original engineering specification for grade, thread pitch, and shank length used on these machines. It fits across multiple RD12 and RD12A configurations, including solid ROPS and foldable ROPS variants. When you need a like-for-like hardware replacement, the is the correct part to order.

Key Features

• Grade 8.8 Tensile Strength — Manufactured to ISO Grade 8.8 specification, delivering the clamping force and shear resistance required in structural and mechanical fastening applications on heavy compaction equipment.
• Smooth Domed Head for Flush Installation — The carriage bolt's square-neck shank locks into place upon installation, preventing rotation without the need for a second tool on the bolt head side.
• Genuine OEM Hardware — Supplied as an original Wacker Neuson component, ensuring correct thread form, shank diameter, and length match the original fastener in your machine.
• Broad RD12 Series Coverage — Confirmed fitment across RD12-90 and RD12A-90 tandem rollers, including solid ROPS and foldable ROPS configurations.
• Structural Integrity Where It Counts — Replacing a worn, stripped, or corroded fastener with the correct grade bolt restores proper joint clamping force, preventing component loosening under the vibration loads typical of tandem roller operation.

A carriage bolt is a structural fastener used to join panels, frames, guards, and mechanical assemblies within the machine. Its smooth domed head and square neck are designed to seat flush against a surface and resist turning as the nut is tightened, creating a secure, vibration-resistant joint without marring the mating surface. On tandem rollers like the RD12 and RD12A, fasteners are exposed to continuous vibration during compaction passes, and a bolt that has stretched, corroded, or lost its thread integrity can allow critical assemblies to shift or loosen — making prompt replacement with the correct grade hardware essential to safe operation.

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.