12G Panhead Screw - 12G × 25mm Square Drive Head (50 Pack)

Aluminium posts are fixed onto a timber or composite deck with a base plate screwed or bolted into the joists underneath, giving a secure fixing without any concrete work.

Posts are bolted to the side face of a concrete slab, plinth, or retaining wall, keeping the walkable surface clear and suiting edges where top-fixing isn't practical.

Posts are set directly into holes drilled into an existing concrete slab and secured with grout or chemical anchoring, giving a clean, flush finish with no visible base plates.