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Adhesive technology


ONSERT® allows the adhesive bonding of various fasteners to a wide range of materials.

ONSERT® Bonding fasteners

Fixed in seconds

Fast and reliable

You can use ONSERT® wherever thermal joining processes or boreholes cannot be used (CFRP, finished surfaces).

Plus factors

Advantages of ONSERT®

  • Design freedom

    No penetration or protrusion. Fasteners cannot be seen on the visible side.

  • Durability

    Full mechanical load capacity immediately after irradiation. Components can be mounted directly after bonding.

  • Uniformity

    Whether steel, aluminium sheet or plastics. Multiple materials, one procedure. The simple fastening method for all sorts of components.

Method and principle

Fixation in seconds

Bonding where welding is no longer possible

Fasteners with a socket made of transparent plastic are bonded to your component with a light-curing adhesive. The most important aspects are short cycle times, the material-friendly process and flexibility relative to the fasteners

Broad range of options

All geometries that can be produced by injection moulding are possible. Screw connections on moulded plastic parts, releasable and non-releasable snap connections or adhesive SNAPLOC® fasteners, etc. can be attached on materials such as CFRP, FRP, glass, lacquer, cathodic dip coating, plastic such as PC-ABS, PA and blends.

Which adhesive is suitable?

The suitable adhesive is defined through trials on the original component.
DELO and BÖLLHOFF work together to ensure optimal processing.
All adhesives used are DELO PHOTOBOND.
DELO and BÖLLHOFF would be pleased to support you throughout the entire development process – right from the start.

ONSERT® Portable Mini Battery-operated manual installation tool

Material expertise

ONSERT® Your solution for challenging materials

A selection of particularly sensitive materials is provided here.

  • ONSERT® for composite applications


    • No holes, the fibre structure is not damaged
    • The substrate is not subjected to mechanical or thermal load
    • Excellent corrosion protection (CFRP)
    • Fast and easy integration process
  • ONSERT® for glass applications


    • Secure fixation before curing occurs in the oven (sensor frame)
    • No holes
    • Fast and easy integration process
  • ONSERT® for finished surfaces


    • No material accumulations for the fastening on injection-moulded components
    • No deformation or heat input in sheet metal materials
    • Can also be used after surface finishing
    • Fast and easy integration process

Any questions?

We are here to assist you

Do you want to know more about our products or services? Our team will be happy to advise you.

Contact us

Find the right solution for your application

ONSERT® product types

  • ONSERT® Smart


    • One-component, light-curing adhesive (Photobond)
    • Adhesive is completely cured in ~4 seconds
    • Technical strength immediately after irradiation
  • ONSERT® Portable Mini


    • Ergonomic two-component housing: sure-grip and non-slip
    • Optimal curing through adapted light geometry
    • Process monitoring via USB connection
    • Fast and safe positioning via 3‑point button
    • Easy handling
    • Flexibility
    • Lithium‑ion rechargeable battery

    We also offer automated solutions for processing ONSERT® elements.

Broad range of options

Discover our special solutions

  • SNAPLOC® Ball studs

    with ONSERT® connection and DELO® adhesive on aluminium sheet

  • SNAPLOC® coupling

    with ONSERT® and DELO® adhesive on CFRP


    as cable holder


    with HITSERT® Screwlock

Information and more


Are you interested in ONSERT®? Please download further information here.

We are happy to help

Do you have any questions or a current project?

Let us know – we will get in touch with you

Contact us