ANSI 
Chain 
No.

Pitch

Chain
Lacingn

Plate
depth 

Plate
thickness

Pin
deiameter

Pin
length 

Average
tensile 
strength

P

h2
min

T
max

d2
max

L
min

Q0

mm

mm

mm

mm

mm

kN

BL422

12.7

2×2

12.07

2.08

5.09

11.05

27.9

BL423

2×3

13.16

27.6

BL434

3×4

17.4

41.6

BL444

4×4

19.51

56.0

BL446

4×6

23.75

56.2

BL466

6×6

27.99

81.7

BL488

8×8

36.45

109.5

BL523

15.875

2×2

15.09

2.44

5.96

12.9

42.8

BL522

2×3

15.37

42.9

BL534

3×4

20.32

93.7

BL544

4×4

22.78

84.5

BL546

4×6

27.74

84.6

BL566

6×6

32.69

125.1

BL588

8×8

42.57

169.8

BL622

19.05

2×2

18.11

3.3

7.94

17.37

63.6

BL623

2×3

20.73

63.7

BL634

3×4

27.43

102.6

BL644

4×4

30.78

122.6

BL646

4×6

37.49

122.5

BL666

6×6

44.2

190.8

BL688

8×8

57.61

238.9

BL822

25.4

2×2

24.13

4.09

9.54

21.34

108.2

BL823

2×3

25.48

108.5

BL834

3×4

33.76

143.6

BL844

4×4

37.90

214.7

BL846

4×6

46.18

214.6

BL866

6×6

54.46

324.7

BL888

8×8

71.02

432.7

BL1022

31.75

2×2

30.18

4.9

11.11

25.37

146.9

BL1023

2×3

30.33

146.9

BL1034

3×4

40.23

231.6

BL1044

4×4

45.19

291.5

BL1046

4×6

55.09

291.6

BL1066

6×6

65.00

430.3

BL1088

8×8

84.81

555.2