(Canada) How do I calculate the design strength of inclined screws?

Fully threaded self-tapping screws are optimized for axial loading. By sufficiently inclining the screws toward the line of the force, lateral connections are characterized predominantly by axial effects rather than dowel effects, which produces stiff, high strength connections.
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The simplified truss model is a highly practical and effective calculation method for inclined screws.  This model is based on the idea that all design strength can be considered as the product of axial effects only, and that dowel effects can be neglected for the sake of practicality. The design equation for inclined shear-tension screws arranged mutually parallel in a connection included below:
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Relevant Technical Resources

Gallery webinar slides first page Slides: Advanced Theory and Behavior of Inclined Screws
Gallery webinar basic theory behavior inclined screws Webinar: Basic Theory and Behavior of Inclined Screws
Gallery canadian screw design guide cover Canadian Structural Screw Design Guide

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