16 Packs Shelf BracketsOur triangle shelf brackets size is 300 x 190MM /11.8" x 7.5" (L*W). Mount Hole Dia.: 5mm/ 0.2", Thickness: 2mm/0.08". SUPPORT HEAVY WEIGHTThese 12 inch shelf brackets made of premium steel support heavy weightmaximum support weight of 66lb for a pair of this L bracket, durable and not easy to break. In additional, our wall hanging brackets have white coated finish for long lasting protection, against rust, you can use it both indoor and outdoor. EASY TO INSTALLEven if you are not good at DIY, it is easy to install. We offer free screws and hardware, screw holes are countersunk, the head of the screw is not protruding after the screw has been screwed in, so without cause scratches. You just need to make sure that the corner brace brackets are perpendicular to the furniture. MAKE ORDERLY Mounting wall decor for a DIY project. Mounting bracket is an important fastener to make furniture parts stay firm. You can install in home, garden, make your home or garden more beautiful and tidy. Also can be used in the supermarket exhibition or display brackets. UNLIMITED USESMix and match a variety of boards, perfectly for installing shelf wall brackets bathroom shelf, bedroom shelf, bookshelf, garden shelf, kitchen shelf and tool shelf.