Timber Connection Design: bolt
bt spf 0500 to bt spf 0750
NDS 2018 (AWC) timber connection design values — dowel bearing strengths, withdrawal design values, and lateral design values (Z) for common nails, box nails, sinker nails, wood screws, lag screws, bolts, split ring connectors, shear plate connectors, and timber rivets by wood species group
| fastener type | record id | CD load duration typical | CM wet service | Cg group action | Ct temperature | Fe parallel psi (psi) | Fe perp psi (psi) | Fe small D psi (psi) | Z double shear lb (lb) | Z single shear lb (lb) | edge distance in (in) | end distance parallel in (in) | end grain factor Ceg (dimensionless) | fastener bending yield Fyb psi (psi) | fastener diameter in (in) | fastener length or size | min member thickness in (in) | penetration depth min in (in) | row spacing in (in) | species group | specific gravity G (dimensionless) | toe nail factor Ctn (dimensionless) | withdrawal W lb per in (lb/in) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| bolt | bt spf 0500 | 1 | 0.75 | 1 | 1 | 4,704 | 2,138 | 0 | 778 | 484 | 1.75 | 3 | 0.67 | 45,000 | 0.5 | 1/2 in A307 bolt | 3.5 | 4 | 3 | Spruce-Pine-Fir | 0.42 | 0 | 0 |
| bolt | bt spf 0750 | 1 | 0.75 | 1 | 1 | 4,704 | 1,846 | 0 | 1,160 | 726 | 2.63 | 3.75 | 0.67 | 36,000 | 0.75 | 3/4 in A307 bolt | 5.5 | 6 | 3 | Spruce-Pine-Fir | 0.42 | 0 | 0 |
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