d
Threads per inch
m
s
1/4
20
6,4
11
5/16
18
7,9
13
3/8
16
9,5
17
1/2
12
12,7
22
5/8
15,9
27
3/4
10
19,1
32
7/8
9
22,2
36
1.IN.
8
25,4
41
1.1/4
7
31,8
50
1.1/2
6
38,1
60
1.5/8
5
41,3
65
2.1/2
4
63,5
95
Thread
Driving features
Material
Class
Packaging
Code
BSW
hexagon
Free-cutting steel
Standard
11280