3030 Corner Bracket Plate L Shape 5 Hole 90 Degree Outside Joining Plate with M6x10mm Screws and T-Nuts for 30 x 30mm Series Aluminum Extrusion Profile,8pcs/Pack (Black-3030 L Shape)

Work great for strength and appearance, they’re a solid part, square and don’t have any burs or other issues.

Works well. Very strong.

High quality, priced right, good value.

These work great for 3030 extruded aluminum. The plate quality is nice and yhe screws and T nuts fit well. Great value.

The 90 degree 5-hole corner plates can be used on 2020 or 1010 extrusion, although they won't reach all the way to the outside edge on 1010 profile. These fall into the budget category, but are well-made and should be adequate for most uses. The finish is a matte that is slightly rougher than the satin coat on name brands. These give a stronger corner than most 2 hole solutions, and usually you can get away with only a plate on one side of the braced corner. Nut and screws are decent.

These 2020 corner brackets work great for joining 2020 aluminum extrusion pieces. The brackets are well made and very sturdy. The black anodizing looks good and its cool that they also include plenty of screws and T-nuts to get you started building right away. There isn’t much to say about these brackets that hasn’t already been said, but I will recommend them to anyone wanting to make nice, square corners with their 2020 aluminum profiles.

Corners are great… screws that some with it are too short. You can’t catch the nut no matter what you do.