|
Heavy Thumb Screw (type B) ANSI/ASME B18.17 | |||||||||||
|
Nomial size |
Threads per Inch |
Head Width(A) |
Head Height(B) |
Head Thickness(C) |
Head Thickness(D) |
Practical Screw Lengths(L) | |||||
Max |
Max |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min | ||
|
10 |
24 |
.89 |
.83 |
.78 |
.66 |
.18 |
.16 |
.08 |
.06 |
2.00 |
.50 |
|
1/4 |
20 |
1.05 |
.99 |
.81 |
.72 |
.24 |
.22 |
.11 |
.09 |
3.0 |
.50 |
|
5/16 |
18 |
1.21 |
1.15 |
.88 |
.78 |
.27 |
.25 |
.11 |
.09 |
4.00 |
.50 |
|
3/8 |
16 |
1.41 |
1.34 |
.94 |
.84 |
.30 |
.28 |
.14 |
.12 |
4.00 |
.50 |
|
7/16 |
14 |
1.59 |
1.53 |
1.00 |
.91 |
.36 |
.34 |
.14 |
.12 |
3.00 |
1.00 |
|
1/2 |
13 |
1.81 |
1.72 |
1.09 |
.97 |
.40 |
.38 |
.18 |
.16 |
3.00 |
1.00 |
