Wacker Neuson 5000111336 Hex Nut Left Hand 1/4-28 UNF

The Wacker Neuson is a genuine OEM Hex Nut Left Hand 1/4-28 UNF designed for the RD11AEC, RD11V, and RD11A hydrostatic double drum vibratory rollers. As a direct factory replacement, this left-hand threaded fastener meets the exact thread specification required by the original design, ensuring correct torque retention and a secure, lasting connection. Sourced directly from Wacker Neuson, part number delivers the dimensional accuracy and material grade the machine was engineered around. If you are servicing or rebuilding an RD11 series tandem roller, using the correct left-hand fastener is essential to maintaining proper component retention.

Key Features

• Left-Hand Thread Integrity — The 1/4-28 UNF left-hand thread specification prevents loosening under rotational forces common in drum and drivetrain assemblies, maintaining clamping force over time.
• Genuine OEM Construction — Manufactured to Wacker Neuson's material and dimensional standards, this fastener delivers the hardness grade and thread tolerance the original assembly requires.
• Direct Drop-In Replacement — Matches the original fastener profile exactly, threading into existing mating hardware without re-tapping or modification to the host assembly.
• Confirmed RD11 Series Fitment — Verified for use on the RD11AEC, RD11V, and RD11A hydrostatic double drum vibratory rollers — a walk-behind tandem roller used for asphalt and soil compaction.
• Critical Safety Fastener — Left-hand fasteners are used in specific locations where counter-rotation would cause a standard right-hand nut to self-loosen; using the correct thread direction is essential to safe operation.

A hex nut is a threaded fastener that clamps components together by engaging a mating bolt or stud and applying controlled clamping force when torqued. Left-hand threaded variants like the 5000111336 are specified in applications where shaft or drum rotation would naturally unthread a standard right-hand nut, making thread direction a critical design choice rather than a cosmetic one. Using an incorrect thread type or pitch in these locations can lead to fastener loosening, component separation, and potential damage to the machine or risk to the operator.

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.

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Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.