Utility Shelf Bracket 10 By 12 Inch Black Steel. Designed for closets, garages and sheds. Brackets are sized under the inches shown to fit standard lumber widths. First measurement indicates nominal width of shelf leg; second measurement denotes nominal length of wall leg. Mounting screws not included. Six screw holes per bracket for extra holding power. Bulk packed, mounting screws not included. Strengths exceed ANSI/BHMA standards. Safe working load is 100 pounds.