18-8 Stainless Steel Socket Cap Screw, Button Head, Internal Hex Drive, Meets ISO 7380, 10mm Length, Fully Threaded, M5-0.80 Metric Coarse Threads (Pack of 100): Amazon.com: Industrial & Scientific
Amazon.com: Class 8.8 Steel Cap Screw, Yellow Zinc Plated Finish, Flange Hex Head, External Hex Drive, Meets DIN 6921, Flanged, Serrated, 20mm Length, Fully Threaded, M8-1.25 Metric Coarse Threads, Imported (Pack of
1500pcs) ISO 7380 M5X8/8 Hexagon Socket Button Head Screws with Fullthread A2 Stainless Steel, Ships Free in USA by Aspen Fasteners, ASSP7380125-8: Amazon.com: Industrial & Scientific