Amazon.com: M8 x 10mm Flanged Hex Head Bolts Flange Hexagon Screws, Stainless Steel A2, DIN 6921, 20 PCS : Industrial & Scientific
Amazon.com: (600pcs) DIN 6921 M5X8/8 Hexagon Head Screws with Flange and Fullthread A2 Stainless Steel, Ships Free in USA by Aspen Fasteners, ASSP692125-8 : Industrial & Scientific