Brackets B4 Universal bracket to which the trays can be mounted vertically 120 – 422 mm (4.7” – 16.6”), horizontally 120 mm (4.7”) and diagonally 120 – 220 mm (4.7” – 8.7”). Used together with Combi Fitting B21 and B21 90°. Material # Weight, kg (lbs) Pack Zinc plated 11 491 57 0.14 (0.31) 10 Hot Dip Galvanized 11 492 57 0.15 (0.33) 10 Stainless/Acid proof 11 493 57 0.15 (0.33) 10 Brackets B4 mini Universal bracket to which the trays can be mounted vertically, horizontally and diagonally. Used together with Combi Fittings B21 and B21 90°. B4 mini – for cable trays 53/45, 75x4/55 and 75x5/55. Material # Weight, kg (lbs) Pack Zinc plated 11 491 98 0.06 (0.13) 10 Hot Dip Galvanized 11 492 98 0.06 (0.13) 10 Stainless/Acid proof 11 493 98 0.05 (0.11) 10