WITOL Surface

Highly integrative fastening solution with low installation height

The highly integrative WITOL Surface is always used when the fastening level is indirectly in the area of the surface. This is made possible by the innovative relocation of the functional area to the interior of the component structure. The WITOL Surface is therefore located completely inside the vehicle structure and thus differs significantly from the other WITOLs.


Maximum process reliability and easy handling

The WITOL Surface proves to be extremely process-safe over the complete range of application and is characterized by easy handling. Depending on the application, it may be necessary to keep the joining forces of the WITOL as low as possible for ergonomic reasons. This also enables overhead and single-handed assembly in compliance with occupational safety and ergonomic regulations.

WITOL Surface Toleranzausgleich

Two systems for mounting with WITOL Surface

One-step assembly

The WITOL Surface is inserted at the joints of the outer skin. During assembly, the screwing process activates the WITOL and automatically compensates for the tolerances between the vehicle structure and the outer skin. The result is a flush surface.

Two-step assembly

In the elements with a two-step assembly, the compensation of tolerances is first activated by a tool. This is similar to a precision sleeve that is compatible with the component’s bolt or nut system. Following this, the component can then be fixed conventionally using a stud or screw.

Benefits overview


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WITOL Tolerance Compensation Solution

Learn more about the advantages of WITOL:

Higher productivity & lower costs.
The advantages of WITOL at a glance.

WITOL Surface is used for laser-welded roofs as well as for roofs with a roof duct. The cavity between the roof cladding and the supporting structure is precisely compensated by WITOL so that the railing is fixed and load-bearing.

Tolerance compensation for roof railings

Due to the limited installation space for sun roofs, it is an additional challenge to integrate tolerance compensation systems. WITOL Surface is specially optimized for this application and fits perfectly into the roof structure.

Tolerance compensation for sun roofs

Exterior parts must be precisely fastened in order to be optimally placed in terms of aerodynamics and acoustics in addition to appearance. With WITOL Surface, tolerances can be reliably compensated and components perfectly positioned.

Tolerance for exterior parts

Here you can find the next product:

To the WITOL Helix

Your individual project – our innovative solution!

With WITOL Individual, you receive a fastening solution that is 100 percent customized to your application and interface. We realize your project from the initial concept to serial production. In doing so, we precisely implement your specifications and develop custom-made special solutions for you. In doing so, you benefit from our years of experience and expertise in the field of tolerance compensation systems.

Contact us now for customized WITOL

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