J.W. Winco 5NXF1/B DIN71802 Ball Joint, 8 mm Diameter, M5 x 0.8 Tapped Right Hand Thread, M5 x 0.8 Threaded Shank, 10 mm Thread Length with Safety Catch: Amazon.com: Industrial & Scientific
MonsterBolts - M5 x 8mm Socket Head Screws, DIN 912, Stainless Steel, 10 Pack: Amazon.com: Industrial & Scientific