Other Weights

 

 

Average Weights of Machine Screws in 18-8 / 316 Stainless Steel. For other materials use multiplier chart at the bottom of the page. Pounds per 1000 pieces.

Diameter

2-56

4-40

6-32

8-32

10-24

10-32

12-24

1/4-20

5/16-18

3/8-16
Length

1/8

.40

.70

1.4

-

-

-

-

-

-

3/16

.50

.90

1.5

2.5

3.8

-

-

-

-

1/4

.60

1.0

1.7

2.8

4.2

5.6

8.5

-

-

5/16

.65

1.2

1.9

3.1

4.5

6.1

9.1

-

-

3/8

.70

1.3

2.1

3.4

4.9

6.5

9.8

17.7

-

7/16

.80

1.5

2.2

3.6

5.3

6.9

10.4

18.8

-

1/2

.85

1.6

2.4

3.9

5.6

7.4

11.1

19.8

32.2

9/16

.90

1.7

2.6

4.2

6.0

7.8

11.7

21.0

33.6

5/8

1.0

1.8

2.8

4.5

6.4

8.3

12.4

21.9

35.1

3/4

1.1

2.1

3.2

5.0

7.0

9.2

13.6

24.0

38.0

7/8

1.3

2.3

3.5

5.6

7.9

10.1

14.9

26.1

41.0

1

1.4

2.5

3.9

6.2

8.6

11.0

16.1

28.2

44.0

1-1/4

-

3.0

4.6

7.3

10.0

12.8

18.7

32.3

49.8

1-1/2

-

3.5

5.3

8.3

11.5

14.7

21.2

36.5

55.8

1-3/4

-

3.9

6.1

9.4

13.0

16.5

23.7

40.7

61.7

2

-

4.3

6.8

10.6

14.4

18.3

26.2

44.8

67.6

2-1/4

-

-

7.6

11.8

16.0

20.1

28.8

49.0

73.5

2-1/2

-

-

8.3

12.9

17.3

22.0

31.3

53.2

79.5

2-3/4

-

-

9.1

13.9

18.9

23.8

33.9

57.3

85.3

3

-

-

9.8

15.0

20.0

25.6

36.4

61.5

91.3

3-1/2

-

-

-

17.4

23.7

29.2

41.5

70.0

103

4

-

-

-

19.8

26.5

32.8

46.6

78.2

115

4-1/2

-

-

-

-

29.7

36.6

51.6

86.5

127

5

-

-

-

-

32.2

40.2

56.7

95.0

139

5-1/2

-

-

-

-

35.3

43.8

61.8

103

151

6

-

-

-

-

38.5

47.5

67.0

112

163

 

 

Weight Conversions, for other materials take the 18-8 / 316 weights above and multiply by the appropriate number below.

400 series stainless
x    .98
Brass
x   1.08
Bronze
x   1.11
Nylon
x    .14
Aluminum
x    .36