Thread
Diameter
& Take Up
(in.)

Stock No.
Galv.

Working
Load Limit *
(lbs.)

Weight Each
(lbs.)

Dimensions
(in.)

A

B

E
Closed

G

J
Open

K
Closed

M
Open

N
Closed

R

S

X
Closed

BB

1/4 x 4

1031877

500

.30

.25

.45

1.58

.62

11.35

7.35

12.07

8.07

.78

.34

1.75

4.00

5/16 x 4-1/2

1031895

800

.50

.31

.50

1.98

.87

13.71

8.71

14.01

9.51

.94

.44

2.09

4.50

3/8 x 6

1031911

1200

.80

.38

.54

2.12

.87

16.81

10.81

17.77

11.77

1.12

.53

2.52

6.00

1/2 x 6

1031939

2200

1.51

.50

.55

2.75

1.06

19.29

12.29

20.48

13.48

1.44

.72

3.23

6.00

1/2 x 9

1031957

2200

1.71

.50

.55

2.75

1.06

25.29

15.29

26.48

16.48

1.44

.72

3.23

9.00

1/2 x 12

1031975

2200

2.08

.50

.55

2.75

1.06

31.29

18.29

32.48

19.48

1.44

.72

3.23

12.00

5/8 x 6

1031993

3500

2.35

.63

.82

3.50

1.31

20.99

13.74

22.53

15.28

1.75

.88

3.90

6.00

5/8 x 9

1032019

3500

3.17

.63

.82

3.50

1.31

26.99

16.74

28.53

18.28

1.75

.88

3.90

9.00

5/8 x 12

1032037

3500

3.61

.63

.82

3.50

1.31

32.99

19.74

34.53

21.28

1.75

.88

3.90

12.00

3/4 x 6

1032055

5200

4.00

.75

1.03

4.18

1.50

22.69

15.19

24.61

17.11

2.09

1.00

4.69

6.00

3/4 x 9

1032073

5200

4.75

.75

1.03

4.18

1.50

28.69

18.19

30.61

20.11

2.09

1.00

4.69

9.00

3/4 x 12

1032091

5200

5.93

.75

1.03

4.18

1.50

34.69

21.19

36.61

23.11

2.09

1.00

4.69

12.00

3/4 x 18

1032117

5200

7.00

.75

1.03

4.18

1.50

46.69

27.19

48.61

29.11

2.09

1.00

4.69

18.00

7/8 x 12

1032135

7200

8.36

.88

1.23

4.85

1.75

36.09

22.34

38.32

24.57

2.38

1.25

5.10

12.00

7/8 x 18

1032153

7200

9.75

.88

1.23

4.85

1.75

48.09

28.34

50.32

30.57

2.38

1.25

5.10

18.00

1 x 6

1032171

10000

8.92

1.00

1.31

5.53

2.06

26.34

18.34

28.89

20.89

3.00

1.44

6.36

6.00

1 x 12

1032199

10000

11.20

1.00

1.31

5.53

2.06

38.34

24.34

40.89

26.89

3.00

1.44

6.36

12.00

1 x 18

1032215

10000

13.30

1.00

1.31

5.53

2.06

50.34

30.34

52.89

32.89

3.00

1.44

6.36

18.00

1 x 24

1032233

10000

17.00

1.00

1.31

5.53

2.06

62.34

36.34

64.89

38.89

3.00

1.44

6.36

24.00

1-1/4 x 12

1032251

15200

19.42

1.25

1.86

7.21

2.81

41.32

26.82

44.55

30.05

3.56

1.81

7.72

12.00

1-1/4 x 18

1032279

15200

24.18

1.25

1.86

7.21

2.81

53.32

32.82

56.05

36.05

3.56

1.81

7.72

18.00

1-1/4 x 24

1032297

15200

28.50

1.25

1.86

7.21

2.81

65.32

38.82

68.55

42.05

3.56

1.81

7.72

24.00

1-1/2 x 12

1032313

21400

28.99

1.50

2.25

7.88

2.81

43.50

28.50

47.25

32.25

4.06

2.12

8.62

12.00

1-1/2 x 18

1032331

21400

35.00

1.50

2.25

7.88

2.81

55.50

34.50

59.25

38.25

4.06

2.12

8.62

18.00

1-1/2 x 24

1032359

21400

39.18

1.50

2.25

7.88

2.81

67.50

40.50

71.25

44.25

4.06

2.12

8.62

24.00

1-3/4 x 18

1032395

28000

53.75

1.75

2.60

9.40

3.38

55.38

37.38

59.78

41.78

4.62

2.38

10.00

18.00

1-3/4 x 24

1032411

28000

60.68

1.75

2.60

9.40

3.38

67.38

43.38

71.78

47.78

4.62

2.38

10.00

24.00

2 x 24

1032439

37000

89.00

2.00

2.62

11.86

3.69

72.62

48.62

77.95

53.95

5.75

2.69

13.09

24.00

2-1/2 x 24

1032457

60000

150.00

2.50

3.06

13.56

4.44

75.80

51.80

82.40

58.40

6.50

3.12

13.78

24.00

2-3/4 x 24

1032475

75000

183.00

2.75

3.68

15.22

4.19

77.88

53.88

85.50

61.50

7.00

3.25

15.22

24.00