expansion bolts and wood fence post anchor base, support bracket to concrete slab connect, made of thick steel, black powder

12gauge steel post 4x4 nominal lumber anchor base anchors black powder coated paint cement column concrete slab copy space deck supports expansion bolts fence garden firmly anchored foundation frame ground handrails hardware heavyduty connector hex wood screws industrial industry isolated white metal plate metallic phillips bugle head pillar pole holders securing support brackets reinforcement rustresistant square strong sturdy structural structure studio background bottom thick topnotch wooden bracket connect rust-resistant background