They are perfectly square, very strong and durable. Used 1/4" x 2 1/2" screws (max size, 5/16 won't fit) to wall mount, put 15" side on 2 studs 24" apart, I was afraid my desktop would sag , but this thing it's so durable I think I could stand on it with 260 pounds. I am very impressed and satisfied. Tjese suspenders have exceeded my expectations. My desk is 6.5 feet by 24 inches deep, which is more than enough.
Stainless Steel π© Fastener Hardware by BIGTEDDY
9 Review
π© N100 792 National Hardware Plated Holder
8 Review
π© Enhanced Durability and Stability: Outside Joining Aluminum Profile Bracket
8 Review
π§ Boeray Stainless Steel Straight Brackets Mending: Durable and Versatile Support Solution
8 Review