Online calculators and converters for fasteners

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.

Length converter

Torque converter

Pressure converter

Force converter

Metric ↔ inch
fasteners converter

Hardness conversion

Online calculators for design / production

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

Metric Thread Profile Calculator 

Pilot hole design for metric thread formers 

Selection of material and coatings for corrosion protection 

Drill hole size for tapped threads

Pilot hole design for tapping screws

Pilot hole design for ecosyn®-Plast

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

Disc spring calculator

Cost Savings Calculator

Thread engagement length calculator

Torque and preload with nut factor (inch)

Torque and preload with nut factor and tool accuracy (inch)

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

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

 
iOS App Store

 
Google Play Store

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.