My thinking is: The load is 170kg, which amounts to 1.67 kN. The length of the cantilever is 600 mm. So the tension load on the upper two fasterners (of four, installed in square patterns) is a total of 1.67 kN * 600 mm / 150 mm = 6.69 kN.
Looking the specifications of a likely system, I see that 2 M10 fasteners at embedment depth 100mm offer me 2 * 8.7 kN tensile load, which contains decent margin of safety. The shear load per fastener is in the same range, there's 4 fasteners, so even considering 10 or 20 kg for the console (likely too much) this is ok.
I'm out of school too long. Is the above correct?