Fastener Shear/Bearing
Check a bolt or rivet group against simple shear and plate bearing allowables. Use this for early joint sizing before detailed edge-distance, tear-out, bypass, and fatigue checks.
Joint Margins
Follow the load through the fastener group, then compare the computed shear and bearing stress to the allowable limits.
Controlling mode
shear
Margin of safety
1.534
Utilization
39.5%
4 fasteners in single shear
12.00 kN joint load
Joint load path
Shear controls
Inspect the load arrows, bearing contact, or shear planes.
Calculated stress versus allowable
Lower bar is the limit for each mode
Load per fastener
3.00 kN
Total shear area
126.68 mm2
Projected bearing area
81.28 mm2
Shear MS
1.534
FOS 2.534
Bearing MS
1.845
FOS 2.845
Shear planes
1
per fastener
Open Source and Easy to Use Elsewhere
This tool is open source and the underlying logic is fully transparent. You can inspect the code, understand the calculations, and contribute improvements. If you want to use the tool in your own website, course page, or learning platform, you can also embed it directly and start from a ready-made iframe setup for this exact tool.
Open source: review the implementation and see how the results are produced.
Embeddable: preview this tool, copy the iframe, and use it in your own site or LMS.