A307 Anchor Bolt

Per IBC Chapter 17, A307 anchor bolts require only in Seismic Design Category C or higher when part of the seismic force-resisting system. However, standard inspection should verify:

Contrast: A F1554 Grade 55 bolt of same diameter gives ( \phi R_n = 23.2 ) kips—56% higher strength. a307 anchor bolt

Bent Anchor Bolts (L-Bolts): These feature a 90-degree bend at the bottom to hook into the concrete, providing pull-out resistance. Per IBC Chapter 17, A307 anchor bolts require