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Weight of Hex Cap Screws (Approximate Weight per 100)

Screw
Length
in.

Nom Size in.
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
7/8
1
1-1/8
1-1/4
1-3/8
1-1/2
1-3/4
2
3/8
1.05
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
½
1.18
1.99
2.93
-
-
-
-
-
-
-
-
-
-
-
-
-
5/8
1.31
2.20
3.24
-
-
-
-
-
-
-
-
-
-
-
-
-
3/4
1.44
2.41
3.55
5.08
8.10
-
-
-
-
-
-
-
-
-
-
-
7/8
1.57
2.62
3.86
5.50
8.66
-
-
-
-
-
-
-
-
-
-
-
1
1.74
2.83
4.17
5.92
9.22
11.28
15.16
24.46
36.78
51.42
704
94.3
121.9
156.9
239.7
340.4
1-1/4
2.08
3.37
4.86
6.76
10.34
12.71
16.93
27.06
40.35
56.10
76.3
101.7
130.8
167.6
254.3
359.5
1-1 /2
2.43
3.91
5.64
7.82
11.59
14.14
18.70
29.66
43.92
60.78
82.2
109.1
139.7
178.4
268.9
378.6
1-3/4
2.77
4.45
6.42
8.88
12.97
15.89
20.66
32.26
47.49
65.46
88.1
116.6
148.6
189.1
283.5
397.7
2
3.12
4.99
7.19
9.94
14.35
17.64
22.82
35.12
51.06
70.14
94.0
124.0
157.5
199.8
298.0
416.8
2-1/4
3.46
5.52
7.97
11.00
15.73
19.39
24.97
38.23
54.96
74.82
99.9
131.5
166.4
210.6
312.6
435.9
2-1/2
3.81
6.06
8.74
12.06
17.11
21.14
27.13
41.34
59.19
79.92
105.8
138.9
175.3
221.3
327.2
455.0
2-3/4
4.15
6.60
9.52
13.12
18.49
22.90
29.28
44.45
63.42
85.44
112.3
146.3
1842
232.0
341.8
474.1
3
4.50
7.14
10.30
14.18
19.87
24.65
31.44
47.56
67.65
90.96
119.3
154.4
193.1
242.8
356.4
493.2
3-1/4
4.84
7.68
11.07
15.24
21.25
26.40
33.59
50.67
71.88
96.48
126.3
163.0
202.8
253.5
370.9
512.3
3-1/2
5.19
8.21
11.85
16.30
22.63
28.15
35.75
53.78
76.11
102.00
133.3
171.7
213.3
265.1
385.5
531.4
3-3/4
5.53
8.75
12.62
17.36
24.01
29.90
37.90
56.89
80.34
107.52
140.3
180.3
223.8
277.6
400.1
550.5
4
5.88
9.29
13.40
18.41
25.39
31.65
40.06
60.00
84.57
113.04
147.3
188.9
234.2
290.0
415.9
569.6
4-1/2
6.57
10.37
14.95
20.53
28.15
35.15
44.37
66.22
93.03
124.08
161.3
206.2
255.2
314.9
449.7
609.3
5
7.26
11.44
16.50
22.65
30.91
38.65
48.68
72.44
101.49
135.12
175.4
223.5
276.2
339.9
483.6
653.6
5-1/2
7.95
12.52
18.06
24.77
33.67
42.16
52.99
78.66
109.95
146.16
189.4
240.8
297.1
364.8
517.5
697.9
6
8.64
13.59
19.61
26.89
36.43
45.66
57.30
84.88
118.41
157.20
203.4
258.1
318.1
389.7
551.4
742.2
For each additional inch
of screw length ADD
1.38
 
2.15
 
3.10
 
4.24
 
5.52
 
7.00
 
8.62
 
12.44
 
16.90
 
22.1
 
28.0
 
34.6
 
42.0
 
49.9
 
67.8
 
88.6
 
NOTES:                                      
1. Weights given in the table are those of carbon steel, coarse thread Hex Cap Screws, page C-12. Carbon steel, fine thread Hex Cap Screws weigh approximately 2 percent more. For screws of longer lengths, add the weight differential. For screws of other materials, apply the factors given in Table 1, page N-28.
2. All weights are approximate.                                                                    
 

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