Im having difficulty figuring this question as their are not enough notes or guides on longitudinal shear on bolts. Shear flow(q/s) = VQ/I Yc = 100 I = 3.65 X 10^8 MM^4 Q = Ax Y' Q = 150 X 25 X 87.5 = 3281250 As analysing shear in the longitudinal which means taken consideration of either top or bottom. However, if not symmetrical would i have to consider both to and bottom in the equation for the maximum shear of the bolt or choose and side as a control and then compare. Based on these results and knowing spacing is s =90 mm and that 2 bolts should be considered, not sure about this bit of it as it occurs longitudinal do i take it being 3 bolts that go parallel to the box or the bolts perpendicular to the face ie 2 bolts ?. 250 shear per bolt so q = 500 500 / 90 = V* 3281250/ I V = 617.91 however the answer in the book (refer to bottom of the question sheet) with no real guide of solution.