Hex Head Bolts
Hex tap bolts, hex cap screws, trim head hex cap screws, and hex serrated flange bolts fall under this category. They share a hexagonal head and are driven with a wrench. Can be used with or without washers in both timber and steel applications. These bolts are partially threaded.
M48
5.00
M45
4.50
M42
4.50
M39
4.00
M36
4.00
M33
3.50
M30
3.50
M27
3.00
M24
3.00
60
73
M22
2.50
M20
2.50
M18
2.50
M16
2.00
M14
2.00
Diameter
(d)
Pitch
 
s
 
k
 
b
 
b (L>125mm)
 
b (L>200mm)
 
M5
M6
0.80
1.00
8.00-7.78
10.00-9.78
3.65-3.35
4.15-3.85
16
18
22
24
35
37
M8
1.25
13.00-12.73
5.45-5.15
22
28
41
M10
1.50
17.00-16.73
6.58-6.22
26
32
45
M12
1.75
19.00-18.67
7.88-7.32
30
36
49
57
44
38
10.29-9.71
24.00-23.16
53
40
34
8.98-8.62
22.00-21.67
27.00-26.16
11.85-11.15
42
48
61
30.00-29.16
12.85-12.15
46
52
65
32.00-31.00
14.35-13.65
50
56
69
36.00-35.00
15.35-14.65
54
41.00-40.00
17.35-16.65
60
66
79
46.00-45.00
19.12-18.28
66
72
85
50.00-49.00
21.42-20.58
72
78
91
55.00-53.80
22.92-22.08
78
84
97
60.00-58.80
25.42-24.58
84
90
103
65.00-63.10
26.42-25.58
90
96
109
70.00-68.10
28.42-27.58
96
102
115
75.00-73.10
30.42-29.58
102
108
121
M52
5.00
129
116
*
33.50-32.50
80.00-78.10
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