: It is a specialized tool that may not be necessary for casual DIY projects, but it is highly regarded in professional automotive environments.
I can provide specific tips or point you toward alternative extraction methods tailored to your exact situation! Share public link
The name is derived from the German phrase "Zack ab" (roughly "Snap off" or "Quickly off") and is a dedicated tool for removing the "Arschlochschraube" (German slang for "asshole bolt") found in four-link axles.
Before applying structural force, clean the protruding threads of the seized bolt thoroughly with a wire brush. Apply a high-quality penetrating oil or freeze-spray. Let it soak for 10–15 minutes. 2. Setting Up the Tool zackab 2020 full
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The tool is a niche item produced by a German manufacturing partnership (Zackab Hummel, Schuller, Stahl OHG), registered in Oberhaching, Germany. Due to its specialized nature, it is expensive. Forum posts from 2020 mentioned the price being around (approx. $450 USD).
Place the specialized sleeve over the bolt thread. The sleeve rests flat against the face of the aluminum steering knuckle. Thread the high-tensile puller nut from the Zackab 2020 kit onto the remaining thread by hand until it sits flush against the tool body. 3. Mechanical Extraction : It is a specialized tool that may
uses a high-tensile pulling mechanism. This system extracts stubborn fasteners smoothly in a single, continuous workflow. Key Technical Specifications
This tool is a specialized piece of equipment, sometimes described as a "Sonderwerkzeug" (special tool), designed to remove seized or rusted bolts that are otherwise impossible to get out with standard tools.
The base Zackab 2020 kit retails directly from the manufacturer for €415.10 (including VAT, plus shipping). Heavy-duty commercial variants, such as the Zackab 2022, cost up to €868.10. including: Heavy-duty anchors and dowels. Bolt
The 2020 release includes several "parallel" versions with different border colors and scarcity levels:
Do you need help identifying if your specific is prone to this stuck pinch bolt issue? Share public link
Because the long steel bolt sits inside a split aluminum wheel bearing housing/steering knuckle, road salt and moisture trigger intense galvanic corrosion. The bolt fuses to the aluminum casing. Traditional removal methods present major downsides:
If you are currently planning a suspension job or trying to extract a stubborn bolt, please let me know:
While it gained fame in the automotive world, the is also highly effective for construction and heavy-duty maintenance. It is officially rated for removing various types of anchors from concrete and stone, including: Heavy-duty anchors and dowels. Bolt, floor, and wedge anchors. Where to Buy or Rent