A popular way to hang Wood and polymer frames and secure them with T Screws.

Two Slotted Plates are screwed one each to either side or spaced across the top of the frame. The third plate is screwed centrally to the bottom bar. The frame fits over three T Screws in matching positions on the wall. 

Measure between the upper slotted plates and plan where to mark the wall for the holes for the matching T Screws. Post-its can help when marking the wall. Hang the frame temporarily on those two T Screws.

Installers now need to locate and mark the position for the bottom T Screw. A Post-it placed in the approximate position can take pencil marking. Another option is the T Screw Companion which clips into the Slotted Plate and when the frame is pressed, leaves a dimple on the wall. 

Once marked, remove the frame, drill and install the third T Screw. Finally, position the frame on all three T Screws and lock with the spanner.

The 3 T Screw system is completely hidden yet makes the frame safe and secure on the wall. No ugly picture plates sticking out from either side.

TS-K258 working video . This strong type use 3 pcs T screw  , lock the frame more strong !  

Welcome to customize quantity in each box , OEM .  Set quantity depends on your choice !

Another regular type as this video plese click  here TS-K258 Normal  type Security hanger kits !