M6-1.0 x 40 mm Hex Flange Bolt Partially Threaded DIN 6921, Class 8.8, Plain Finish (no rust protection)
BHA636-630
https://www.fastenermart.com/mm5/graphics/00000001/DIN6921.gif
19.26
249.15
2
19.26
100.00
pcs
249.15
1600.00
pcs

DIN 6921 Specifications