M20-2.5 x 170 mm Hex Head Bolt Partially Threaded DIN 931, Class 8.8, Plain Finish (no rust protection)
BCA745-704
https://www.fastenermart.com/mm5/graphics/00000001/DIN931.gif
31.22
105.17
2
31.22
5.00
pcs
105.17
25.00
pcs

DIN 931 Specifications