Made in USA - Hex Lock Nut: Distorted Thread, Grade 12 Steel, Cadmium Dichromate Finish - 64710585 - MSC Industrial Supply
Steel Hex Nut, Plain Finish, Class 10, DIN 934, Metric, M10-1.5 Thread Size, 17 mm Width Across Flats, 8 mm Thick (Pack of 50): Amazon.com: Industrial & Scientific
M10 Hexagon Nuts DIN 934 galvanised Grade 8 Hex Nut Nuts M 10 100 : Amazon.de: DIY & Tools