Square Vertical Tenon:
Steel Materials: steel square tube and steel pipe,Q235 (Min.yield shtrength 235Mpa.).; 
Welding: Welding complies with BS5135/EN40. All sharp edges and burrs are removed; 
Finish: Parkerising & Being color powder coating;Or hot dip galvanized;

Screws: SS M8 HEX bolts;
Packing: Individual carton for safe shipping;

1. Single square vertical tenon:  TBTSQ4SVT, TBTSQ5SVT ;