20x M8 Nutenstein 13,5 x 7,2 mm Nut 8, mit Federkugel, Stahl : Amazon.de: Baumarkt
Pack of 100 M3, series 2020, made of carbon steel, half disc made of nickel steel, sliding T-nut, 6 mm nuts, accessories aluminium profile (M5) : Amazon.de: DIY & Tools
Shrapnel Nut, 20pcs M5/M6/M8 EU Standard Galvanized Carbon Steel Shrapnel Nut Block Elastic Nut 40 Series Aluminum Profile Accessories (M8): Amazon.com: Industrial & Scientific