Galvanised Square Box Section Tube

Galvanised square box section tube to use with our square key clamp fittings. Choose 25 × 25mm or 40 × 40mm with a 2.5mm wall, in 1.5m or 3m lengths or cut to the length you need, plus a plain (ungalvanised) 40mm option. Hot-dip galvanising protects the tube indoors and out. The galvanising process leaves a small vent hole near each end, which the fitting covers once assembled.