d
Threads per inch
H
F
3/8
16
9
11/16
1/2
13
12,3
7/8
5/8
11
15,5
1.1/16
3/4
10
18,65
1.1/4
21,85
1.7/16
1.IN.
8
25
1.5/8
1.1/8
28,2
1.13/16
30,95
2.IN.
1.3/8
34,15
2.3/16
1.1/2
37,3
2.3/8
40,5
2.9/16
1.3/4
43,65
2.3/4
1.7/8
46,85
2.15/16
50
3.1/8
2.1/4
55,95
3.1/2
2.1/2
62,3
3.7/8
68,25
4.1/4
3.IN.
75
4.5/8
Thread
Driving features
Material
Class
Packaging
Code
Page
UNC
hexagon
St ASTM A194
Gr.2H
Standard
22280
4-41
8 UN
22290
Gr.4
22380
4-42
22390
Gr.7
22382
St.St. ASTM A194
Gr.8
22383
Gr.8M
22384
Gr.8T
22386