I didn't buy these to mount shelves for their intended purpose. Instead, I bought them to give extra support to a concrete countertop I made. Most of the weight of the tabletop rests on the bar itself, so they're just adding a little extra support to the bar. For that purpose, they seem to get the job done. They had some flex when mounted vertically, but not much. I'm sure they're great for attaching shelves.
Pack Of 6 ETECHMART Rustic Iron Metal L-Shaped Shelf Brackets, 5 Inch Wall-Mounted Support For DIY Open Shelving, Heavy-Duty Corner Brace Shelf Supporter In Black
29 Review
YUMORE Folding Shelf Brackets 20", Max Load: 330Lb Heavy Duty Stainless Steel Collapsible Shelf Bracket For Table Work Bench, Space Saving DIY Bracket, Pack Of 2
17 Review
L Bracket Corner Brace, YUMORE 4'' X 1'' Stainless Steel Right Angle Bracket, 90 Degree Bracket Fastener For Wood Shelf, Furniture, Cabinet, 4 Pack
16 Review
ETECHMART 5 Inch Wall Mounted Floating Shelf Bracket, Pack Of 4 L Shape Heavy Duty Rustic Iron Metal Corner Brace Shelf Supporter For DIY Open Shelving Decoration - Black
20 Review
Hemway Glitter Grout Tile Additive: Sand Gold Sparkle For Your Bathroom, Kitchen And Wet Room Tiles - Easy To Use And Temperature Resistant!
10 Review
Eco-Friendly Solarez UV Cure Grain Filler & Sealer - Perfect For Fine Furniture, Guitars, Pool Cues And DIY Woodworking!
10 Review
πͺ Bondic UV Liquid Plastic Welder - Fast Cure, Strong Adhesive Repair Kit for Home, Garage, Outdoors, etc. - Complete Starter Set (LED Light & Liquid Cartridge in Compact Tin Case)
9 Review
Gorilla Waterproof Patch & Seal Liquid - Black 16Oz - Ultimate Solution For Quick Fixes (Pack Of 1)
39 Review