Edge Distance 1). Minimum end distance Le >= Tf / (0.75 Fu.t), and Le >= 1.5d 2). Maximum end distance Le <= 12 t, and 150 mm Spacing of Bolts 1). Minimum Spacing S >= Tf / (0.75 Fu.t) + d/2, and S >= 2.7 d 2). Maximum Spacing S <= 24.t and 305 mm