Calculators & Converters

Drill Hole Size Calculator for Tapped Threads

To ensure a proper fit for the screw, use this calculator to determine the correct drill hole size before tapping. It is designed for the most commonly used screws, in both metric and imperial units, to support optimal performance and thread engagement.

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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.