Bossard calculators and converters are designed for engineers, technicians, designers and students involved in the development and assembly of bolted joint.

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Online converters

The Bossard «Online converters» are used for converting different units of measure, such as lengths, hardnesses, pressures etc. The converters are divided into topic areas to enable the most efficient selection possible.

Bossard Hardness converter
Hardness conversion

Online calculators for design / production

The Bossard calculators for design / production are used for dimensioning and implementation in the joining technology.

Bossard Pilot hole design tapping screw
Pilot hole design for tapping screws
Bossard Pilot hole design eocsyn-plast
Pilot hole design for ecosyn®-Plast
Bossard Tolerances shaft and holes
Tolerances for shafts and holes

Online calculators for technical design

Bossard calculators for design are used for dimensioning and designing in the joining technology.

Estimation of bolt size and property class
Estimation of bolt size and property class
Disc Spring Calculator
Disc spring calculator
Cost Savings Calculator
Cost Savings Calculator
Thread engagement length calculator
Thread engagement length calculator
Bossard Torque and preload with nut factor - Inch
Torque and preload with nut factor (inch)
Bossard Torque and preload factor Inch with tool accuracy
Torque and preload with nut factor and tool accuracy (inch)
Bossard Torque and preload factor Metric with tool accuracy
Torque and preload with nut factor and tool accuracy (metric)
Bossard preload friction scatter
Torque and preload with friction scatter
Torque and preload for customized geometry and material
Torque and preload for customized geometry and material
Bossard preload friction scatter
Torque and preload Calculator

Apps for mobile devices


Some Bossard Online calculators and converters are available as practical app. You remain mobile at all times. For further information, visit the App Store.

    App Store     Download the Bossard converter/calculator app now from iTunes.

This app contains the following tools:
  • Converters: Length Converter, Torque Converter, Pressure Converter, Force Converter, Metric-imperial Units Fasteners Converter, Hardness Conversion
  • Geometrical Calculators: Drill Hole Size for Tapped Threads, Pilot Hole design for Tapping Screws, Pilot Hole Design for Ecosyn®-plast Screws, Tolerances for Shafts and Holes
  • Mechanical Calculators: Estimation of Bolt Size and Property Class, Disc Spring Calculator, Cost Savings Calculator, Thread Engagement Length Calculator, Torque and Preload with nut factor (imperial system), Torque and Preload with Nut Factor and Tool Accuracy (imperial system), Torque and Preload with Nut Factor and Tool Accuracy (metric), Torque and Preload with Friction Scatter, Torque and Preload for Customized Geometry and Material, Torque and Preload Calculator

Disclaimer

The engineering calculators are free to use under the terms and conditions set out under Imprint. The calculators shall facilitate and support you when designing products. The results depend on assumptions you provide. We do not guarantee their accuracy or applicability to your circumstances. For a thorough engineering advice please contact us.

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