d
Threads per inch
b (js16)
s (D12)
R1/8
28
8
5
R1/4
19
10
7
R3/8
R1/2
14
R3/4
12
R1.IN.
11
17
R1.1/4
18
22
R1.1/2
20
24
R2.IN.
30
Thread
Driving features
Material
Packaging
Code
R
hexagon socket
St
Standard
07650