Review on Brackets Connection Bracket Aluminum Profile by Vincent Poolaw

The screws supplied are too long and come out from inside the channel before attaching the bracket. Also, the small alignment ribs (flat side) are significantly narrower than the 20x20 channel, so they don't snap into alignment, and so the stability of that diagonal corner isn't as good. They were comparatively cheaper but now I have to buy shorter screws or washers to get them into the bracket. this is inconvenient and negates the cost savings.