Calculators & Converters

Estimation of Bolt Size and Property Class

Looking for joint stability and safety without unnecessary weight and cost? Our bolt size and property class estimator guides you to the optimal dimension and strength for your application, based on the VDI 2230:2014 guidelines.

View of fasteners: bolts, nuts, and washers. Bolts assemble two unthreaded components with a nut, while screws are used with threaded components.

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Fastening Know-How

Solve Your Fastening Challenge

We love to share our knowledge and help you master the science of fastening. Take a deep dive into our white papers that address everyday challenges.

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Minimize Risks in Your App

Independent, valid, and reliable: Get access to our own test laboratories, which can also offer you ISO/IEC 17025-accredited tests when required.

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Expert Design Service

Need to speed your product's time-to-market? Seeking guidance for fastener selection or fastening joint design? Take a look at our service.