300pcs) DIN 6926 M6 Self-Locking Hexagon Flange Nuts with Serration A4 Stainless Steel, Ships Free in USA by Aspen Fasteners, ASSP692646: Amazon.com: Industrial & Scientific
150 pcs) M10-1.25, DIN 6923, Metric, Hex Flange Nuts, Class 8 Steel, Zinc Plated: Amazon.com: Industrial & Scientific
Glatte Flansche, VA Edelstahl 1.4541, DIN 2576 PN 10 (DN 150/168,3 mm) : Amazon.de: Baumarkt
200pcs) DIN 6926 M8 Self-Locking Hexagon Flange Nuts with Serration A4 Stainless Steel, Ships Free in USA by Aspen Fasteners, ASSP692648: Amazon.com: Industrial & Scientific
Amazon.com: (1) M12-1.25 x 20mm JIS Hex Head Flange Bolt - Small Head, Class 10.9 Zinc : Industrial & Scientific