How to Screw in Container Houses

Screwing in container houses requires selecting the appropriate screw type and following specific operational steps based on different installation parts and structural characteristics.

Bottom Frame Installation Stage:
When connecting the bottom corners of the container to the bottom beams using hexagon socket bolts, perform initial positioning and installation without fully tightening them. After adjusting the diagonal difference of the bottom frame to be ≤3mm, fully tighten the bolts. This step ensures the squareness of the bottom frame and provides a stable foundation for subsequent installations.

Secondary Beam and Bottom Beam Fixing Stage:
When installing π-shaped secondary beams according to the positioning holes on the long beams, use m5.519 self-tapping screws for fixation. At the same time, the top of the π-shaped secondary beams and the bottom beams should be further reinforced with st4.816 round-head drill-tail screws. Self-tapping screws are suitable for thin plate connections, while drill-tail screws achieve rapid self-drilling and self-tapping through their own drill-tail design, enhancing connection strength.

Floor Installation Stage:
After laying the floor base plates, mark and snap a chalk line along the centerline of the π-shaped beams, and then use st4.2*38 cross-head flat-tail screws to fix the floor along the chalk line, with a nail spacing controlled between 300-350mm. The special design of the flat-tail screws prevents the nails from loosening, ensuring the stability of the floor during long-term use.

Wall Panel Installation Stage:
When splicing wall panels, use steel strips to secure them at the notches. If there are large gaps at the sockets, use blind rivets to re-fix them. Blind rivets form a permanent connection through stretching with a rivet gun and are suitable for scenarios requiring high-strength fixation, such as the connection between wall panels and frames.

Special Part Handling:
In the installation of foldable container mobile homes, after pushing the walls open, tighten them with fastening screws to ensure a firm connection between the walls and the frame. In addition, all cutting and welding notches must be polished and coated with epoxy primer and topcoat during the construction stage to prevent rusting from affecting the screw connection effect.