Wacker Neuson 5000020522 Screw 1/4-20 X 5/8 Hex Head Machine

The Wacker Neuson is a genuine OEM Screw 1/4-20 X 5/8 Hex Head Machine designed for the B 3000 gasoline power unit for internal vibrators and the PD3B 75mm/3in diaphragm pump. As a direct OEM part sourced through the Wacker Neuson parts program, is manufactured to the exact thread pitch, head dimensions, and material grade specified for these machines. This fastener ships ready to install and ensures the correct clamping load and seating depth called out in the original assembly. If you are servicing a B 3000 power unit or a PD3B diaphragm pump, confirming you have the right part number before ordering is the fastest way to get back to work.

Key Features

• Exact Thread Specification — Cut to a true 1/4-20 UNC thread profile, so it engages the tapped bore cleanly without cross-threading or under-torque risk.
• Correct Fastener Length — The 5/8 in. grip length matches the designed stack height of the mating components on both the B 3000 and PD3B, preventing over-insertion or insufficient thread engagement.
• Genuine OEM Quality — Produced to Wacker Neuson material and hardness standards, giving this screw the tensile strength needed to withstand the vibration loads common to concrete vibrator power units and diaphragm pumps.
• Confirmed Fitment — Verified for the B 3000 gasoline power unit for internal vibrators and the PD3B 75mm/3in diaphragm pump by Wacker Neuson part number 5000020522.
• Hex Head Drive — Standard hex head form accepts common wrenches and sockets, making installation or replacement straightforward in the field with no specialty tooling.

A hex head machine screw is a threaded fastener used to clamp or secure two or more components together at a fixed torque value. In assemblies like the B 3000 power unit and PD3B diaphragm pump, these screws hold housings, covers, and bracketed components in alignment under continuous vibration and load. A stripped, incorrect, or missing fastener can allow covers to shift, create fluid paths for contamination, or cause a loss of structural integrity in the assembly — so using the correct size and grade matters more than it might appear for such a small part.

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.