ISMB

ISLB

ISHB

ISWB

net area and gross area

gross area and net area

net area in both cases

gross area in both cases

120 mm

160 mm

200 mm

300 mm

fully by direct bearing

fully through fastenings

50% by direct bearing and 50% through fastenings

75% by direct bearing and 25% through fastenings

only shear stresses

only tensile stresses

both [a] and [b]

none of the above