UNI 704 Standard Dimensions for Hexagon head wood screws, lag screws
This norm has been cancelled
Hexagon head wood screws
This standard specifies the dimensions and characteristics of hexagon head wood screws with nominal diameters from 4 to 20 mm.
Dimensional Drawing and Technical Diagrams
Key Dimensions and Technical Parameters
|
Dimensions in mm - source UNI 704 |
|||||
| Publication date: 11/2010 Supersedes UNI 704 1980 | |||||
|
thread size |
P | d min |
k nom
|
s nom
|
e min
|
|
4
|
1.5 | 3.52 |
2.8
|
7
|
7.5
|
|
5
|
2 | 4.52 |
3.5
|
8
|
8.63
|
| 6 | 2.5 | 5.52 |
4
|
10
|
10.89
|
|
7
|
3 | 6.42 |
5
|
12
|
13.07
|
|
8
|
3.5 | 7.42 |
5.5
|
13
|
14.2
|
|
10
|
4 | 9.42 |
7
|
17
|
18.72
|
|
12
|
4.5 | 11.3 |
8
|
19
|
20.88
|
|
16
|
6 | 15.3 |
10
|
24
|
26.17
|
|
20
|
7 | 19.3 |
13
|
30
|
32.95
|