Connection Calculator

Laterally loaded single-fastener · NDS Ch. 12 · ASD

Inputs

Configuration

One shear plane; one side member bears the fastener.

Connection geometry

Angles shown relative to applied force direction.
Geometry side & main thickness · fractions OK

Member thicknesses only — fastener diameter is under Fastener below.

Thickness of the single side member.

Fastener & factors preset or custom · Table 11.3.1

Bolt: enter D and Fyb per NDS Table I1. Lag screw: pick shank size (Table I1), then length. Wood screw: pick size (Table L3), then length (3–6 in. in 1/2 in. steps). Structural screw: capacity from manufacturer published data when on file. Pick CD from the governing ASD load combination (2018 IBC §1605.3.1 / IRC R301.5). Ct = 1.0 assumed. Wet Service sets the moisture condition; CM is then taken from NDS 2018 Table 11.3.3 (not a single universal reduction). The Single fastener box is the Table 11.3.3 exception for D ≥ 1/4 in., not the wet-service switch.

References & assumptions

ASD only — NDS 2018 Ch. 12 (wood) · AISC (steel) · 2018 IBC §1605.3.1 load combinations.

Reference Z from NDS Table 12.3.1A (min. of six yield modes); adjusted Z′ = Z × CD × CM × Ct × Ctn × CΔ for a single laterally loaded fastener.

Verification required: Confirm all results against NDS 2018, AISC, and governing standards. Not a substitute for engineering judgment.

Everroux® NDS 2018 · AISC · 2018 IBC/IRC ASD