20 PCS Black 4040 Aluminum Extrusion Corner Bracket Kit M6 Spring TNut

20 Sets Black 4040 Aluminum Extrusion Corner Bracket Kit – 20pcs Black Corner Brackets, 40pcs M6 Spring T-Nuts & Hex Screws, 1 Ball-End Hex Wrench – for 40 Aluminum Profile,Rail Accessories. 🔩【Durable & Anti-Corrosion Black Coating】 Our black 4040 aluminum extrusion corner brackets are made of high-strength cast aluminum with a durable black coated finish, providing enhanced corrosion resistance, scratch resistance, and a sleek matte look.