Wacker Neuson 5000183037 Screw 7/16-20X5.5 SAE Grade 5

The Wacker Neuson Screw 7/16-20X5.5 SAE Grade 5 is a genuine OEM fastener designed for CRT48-33K and CRT48-57K series ride-on power trowels. As a direct factory replacement, this screw meets the exact thread specification, length, and load rating called out in the original Wacker Neuson engineering documentation. Sourcing the correct OEM hardware ensures structural joints are torqued and held to the tolerances the machine was built around. Confirm your model number before ordering — fitment data covers multiple CRT48 variants including Dual-Fuel and Power Steer configurations.

Key Features

• Correct Thread and Grade Specification — SAE Grade 5 rating delivers the tensile strength and proof load required for structural fastener applications on ride-on trowel assemblies.
• Genuine OEM Hardware — Sourced directly from Wacker Neuson, this screw matches the original part in thread pitch (7/16-20 UNF), shank length (5.5"), and material grade — no substitutions or approximations.
• Broad CRT48 Series Coverage — Compatible with CRT48-33K, CRT48-33K Dual-Fuel, CRT48-57K, CRT48-57K Power Steer, and CRT48-57K-PS EU trowel models.
• Drop-In Installation — Fine-thread UNF profile threads directly into existing tapped holes or pairs with the original nut without chasing or reworking the mating surface.
• Prevents Joint Failure Under Vibration — Ride-on trowels generate sustained high-frequency vibration during finishing passes; using an undersized or incorrect-grade substitute risks fastener fatigue and loosening in critical assemblies.

A screw of this specification serves as a structural fastener within the CRT48 trowel's frame or component assemblies, securing parts under the dynamic loads and vibration inherent to concrete finishing work. The 7/16-20 UNF fine-thread profile provides greater clamping force and resistance to loosening compared to coarse-thread equivalents, making it well suited to applications where joint integrity must be maintained across long operating cycles. When a fastener of the wrong grade or thread pitch is installed, it can back out under vibration or fail to hold the specified clamp load, potentially allowing movement in components that must remain rigidly fixed during 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.

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