Screwerk Screw for Plastics, 100 pc, Pan Head with 6-Lobe Drive (TX), Diameter 4 mm x Length 22 mm, zinc Plated Steel: Amazon.com: Industrial & Scientific
Amazon.com: binifiMux 10-Pack M6-1.0 x 35mm Rivet Countersunk Hex Head Socket Cap Bolt and Barrel Nut for Furniture : Industrial & Scientific