M 5 x 30 – 100

M 6 x 30 – 200

M 8 x 35 – 300

M 10 x 40 – 300

M 12 x 45 – 300

M 14 x 50 – 300

M 16 x 55 – 300

M 18 x 65 – 300

M 20 x 70 – 300

M 22 x 70 – 300

M 24 x 70 – 300

M 27 x 80 – 300

M 30 x 80 – 300

M 33 x 60 – 200

M 36 x 90 – 300

M 42 x 80 – 200

Class

Size

Material

Tensile strength σ b min (Mpa)

Hardness (HRC)

Elongation δ% δ %

Reduction of cross-sectional area Ψ %

8.8

d ≤ M16

35 #, 45 #

800

22~32

12

52

8.8

M18≤d≤ 24

35 #, 45 #

830

23~34

12

52

8.8

d ≥ M27

40 Cr

830

22~34

12

52

10.9

All Size

40 Cr, 35CrMoA

1040

32~39

9

48

12.9

All Size

35 CrMoA, 42CrMoA

1220

39~44

8

44