Commercial Window Guards / Security Window Guards by Johnny007 Solid flat ½” steel bar window guard. (Queens, NY) Custom window guard design. (Bronx, NY) Steel ½” bar bellied window guards. (NY, NY) Expanded metal welded steel mesh in angle iron frames with hinges and pad lockable hasps can be made as window guards, security doors, HVAC dunnage protection, or security cage rooms in any shape or form and cut around pipes etc. for commercial, industrial, institution Steel welded flat stock window guards. (NY, NY)