Square Horizontal Tenon:
Steel Materials: Q235 (Min.yield shtrength 235Mpa.). 
Welding: Welding complies with BS5135/EN40. All sharp edges and burrs are removed. 
Finish: Parkerising & Being color powder coating.
Packing: Individual carton for safe shipping.

Options:
1. 90° twin square horizontal tenon:  TBTSQ4T90, TBTSQ5T90 ;
2. 180° twin square horizontal tenon: TBTSQ4T180, TBTSQ5T180 ;
3. 90° triple square horizontal tenon: TBTSQ4TR90 , TBTSQ5TR90 ;
4. 90° four square horizontal tenon:  TBTSQ4F90, TBTSQ5F90 ;