Wacker Neuson 5100049721 Screw M8x20 Hex Flange Head 8.8 Black Zinc

The Wacker Neuson Screw M8x20 Hex Flange Head 8.8 Black Zinc is a genuine OEM fastener designed for the HTC15 trench roller. Sourced directly from Wacker Neuson, this is the exact screw specified for this application — no substitutions, no guesswork. The black zinc coating provides corrosion resistance suited to the demanding environments trench rollers operate in, and the grade 8.8 rating confirms it meets the mechanical strength requirements of the original design.

Key Features

• Grade 8.8 Tensile Strength — Meets the mechanical load rating of the original fastener, ensuring clamped joints hold under the vibration and stress typical of trench compaction work.
• Black Zinc Corrosion Protection — The black zinc finish resists rust and surface degradation, extending service life in wet and muddy trench conditions.
• Genuine OEM Part — Manufactured to Wacker Neuson's exact specification, so thread pitch, shank length, and flange diameter match the original installation point without any rework.
• Hex Flange Head Design — The integrated flange distributes clamping load evenly without a separate washer, simplifying reinstallation and maintaining consistent preload.
• Direct HTC15 Fitment — Confirmed for the Wacker Neuson HTC15 trench roller, so you can order with confidence using part number 5100049721.

An M8 hex flange head screw is a structural fastener used to clamp and secure assemblies within the machine — holding covers, brackets, or mechanical components firmly in place during operation. The integrated flange acts as a built-in washer, spreading the load across a wider bearing surface and helping maintain consistent joint tension even under continuous vibration. When a fastener of this type fails, stretches, or is substituted with an incorrect grade or size, the joint can loosen progressively, leading to misalignment, accelerated wear on adjacent components, or component separation 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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