Review on 🔧 VintageBee20 Straight Bracket Thickness Mending: Durable Repair Solution for DIY Projects by Mark Jefferson

They will most likely work for all your purposes unless you plan on attaching magnets to them. They are not just "steel". Maybe stainless steel? I was going to attach them to a wooden table to attach magnetic hooks, but these panels are not magnetic. Would give 5 stars if they mentioned it's not pure steel (like stainless steel, nickel alloy steel etc.).