Wacker Neuson 5000089781 Screw 3/4-10X6.5 Gr.5 Hex Head

The Wacker Neuson is a genuine OEM Screw 3/4-10X6.5 Gr.5 Hex Head designed for the LT, LTP, and LTW series light towers. Sourced directly from Wacker Neuson, this fastener meets the exact material grade and dimensional specifications called out in the original equipment design. It is confirmed to fit a broad range of light tower models including the LT4K, LTP4K, LT4Z, LTP4Z, LTW4Z, LTWP4Z, LTW4K, LTWP4K, LTW6Z, LT4SK, LTP4SK, LT4SZ, and LTP4SZ. When a structural fastener is replaced with the correct OEM part, you can be confident the joint integrity and torque specifications of the original assembly are maintained.

Key Features

• Grade 5 Tensile Strength — Manufactured to ASTM Grade 5 specification, delivering the shear and tensile load capacity required for structural light tower assemblies.
• Correct Thread Form and Dimensions — 3/4-10 UNC thread pitch and 6.5-inch length match the original fastener exactly, so the bolt seats and torques correctly without rework.
• Genuine OEM Part — Supplied by Wacker Neuson as part number 5000089781; identical in material and geometry to the hardware installed at the factory.
• Broad Light Tower Coverage — Fits LT4K, LTP4K, LT4Z, LTP4Z, LTW4Z, LTWP4Z, LTW4K, LTWP4K, LTW6Z, LT4SK, LTP4SK, LT4SZ, and LTP4SZ models — verify your machine number before ordering.
• Structural Integrity at Height — Light tower mast and frame joints depend on correctly rated fasteners; using an undersized or incorrect-grade bolt risks mast instability during deployment and retraction.

A hex head bolt of this size and grade is a load-bearing structural fastener used in the mast, frame, or mounting assemblies of the light tower. It clamps critical components together under the sustained vibration and mechanical stress that comes with frequent setup, transport, and operation in the field. When a fastener of this type stretches, strips, or is replaced with an incorrect grade, the clamped joint loses its designed clamping force — which can lead to movement, accelerated wear on mating components, or loss of structural stability in the mast assembly. Replacing a worn or damaged bolt with the correct OEM part, 5000089781, restores the joint to its original specification.

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.