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HSS-E Machine Tap for blind holes
for BSW - Thread
universal tool
DIN 371 / DIN 376
< 800N/mm2
Form C (2-3 xP) 40°
BSW= British Standard Whitworth Coarse Thread Series
In GB most common Thread. Corresponds to the Metric Thread
in its type of use
| d1 |
P |
I1 |
I2 |
I3 |
d2 |
a |
Drillø mm |
DIN |
| 1/4-20 |
20 |
80 |
12 |
30 |
7,0 |
5,5 |
5,10 |
371 |
| 5/16-18 |
18 |
90 |
15 |
35 |
8,0 |
6,2 |
6,50 |
371 |
| 3/8-16 |
16 |
100 |
18 |
39 |
10,0 |
8,2 |
7,90 |
371 |
| 7/16-14 |
14 |
100 |
15 |
|
8,0 |
6,2 |
9,25 |
376 |
| 1/2-12 |
12 |
110 |
18 |
|
9,0 |
7,0 |
10,50 |
376 |
| 3/4-10 |
10 |
125 |
25 |
|
14,0 |
11,0 |
16,50 |
376 |
| 1-8 |
8 |
160 |
30 |
|
18,0 |
14,5 |
22,00 |
376 |
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