Step 5:
Push the M6*12 Bolt (B) through the
φ
6 Spring Washer (E),
φ
6 Washer (G) and fix the
Bottom Panel (4) in position by screwing it into the riv-nuts on the side panels.
Step 6:
Use the M6*12 Bolts, Ø6 Spring Washers and Ø6 Washers to fix the Door Beam(10) to
the frame by screwing it onto the Side Panels in the position shown below.