I use this to plug the end of a 2x4 aluminum tube. They fit snugly in the channel, but the cap doesn't completely cover the material, leaving sharp corners exposed.
π© Enhanced Durability and Stability: Outside Joining Aluminum Profile Bracket
8 Review
π§ Inch Stainless Steel Brackets - Includes 80 Brackets
8 Review
π§ Boeray Stainless Steel Straight Brackets Mending: Durable and Versatile Support Solution
8 Review
Stainless Fastener Bracket for Furniture Bedframes
8 Review