M20-2.5 x 170 mm Double End Stud (Tap End ~1.25d Long) DIN 939, Interference Fit, Class 8.8, Plain Finish (no rust protection)
STA745-704
https://www.fastenermart.com/mm5/graphics/00000001/DIN939.gif
29.03
948.29
2
29.03
1.00
pc
948.29
40.00
pcs

DIN 939 Specifications