Operation
Version 1.0.5 - 2020-12-09
57
Translation of original instruction
TX4414
EN
T
X
4414
_GB
_4.
fm
4.21.6 British thread (55° flank angle)
BSW (Ww.): British Standard Whitworth Coarse Thread Series is the most common coarse
thread in Great Britain and corresponds in its usage category to the metric coarse-pitch thread.
The designation of a hexagon head screw 1/4" - 20 BSW x 3/4" , is here: . 1/4" is the nominal
diameter of the screw and 20 is the number of threads in 1" of length
BSF: British Standard Fine Thread Series. British Standard Fine Thread Series. BSW- and BSF
are the thread selection for the common screws. This fine thread is very common in the British
machine tool industry, but it is replaced by the American UNF thread.
BSP (R): British Standard Pipe Thread. Cylindric pipe thread; designation in Germany: R 1/4"
(nominal width of the tube in inch). Tube threads are larger in their diameter as "BSW". Desig-
nation 1/8" - 28 BSP
BSPT: BSPT: British Standard Pipe - Taper Thread. Conic tube thread, cone 1:16; designation:
1/4" - 19 BSPT
M 30
3.5
27.727
25.706
26.211
2.147
1.894
0.505
26.5
M 36
4
33.402
31.093
31.670
2.454
2.165
0.577
32
M 42
4.5
39.077
36.479
37.129
2.760
2.436
0.650
37.5
M 48
5.5
44.752
41.866
41.866
3.067
2.706
0.722
43
M 56
5.5
52.428
49.252
49.252
3.374
2.977
0.794
50.5
M 64
6
60.103
56.639
56.639
3.681
3.248
0.866
58
Metric fine-pitch thread
Denomi-
nation of
thread
d x P
Flank
dia-
meter
d2 = D2
Core
diameter
Denomi-
nation of
thread
d x P
Flank
dia-
meter
d2 = D2
Core
diameter
Bolts
Nut
Bolt
Nut
M2 x 0.2
1.870
1.755
1.783
M16 x
1.5
15.026
14.160
14.376
M2.5 x
0.25
2.338
2.193
2.229
M20 x 1
19.350
18.773
18.917
M3 x 0.35
2.773
2.571
2.621
M20 x
1.5
19.026
18.160
18.376
M4 x 0.5
3.675
3.387
3.459
M24 x
1.5
23.026
22.160
22.376
M5 x 0.5
4.675
4.387
4.459
M24 x 2
22.701
21.546
21.835
M6 x 0.75
5.513
5.080
5.188
M30 x
1.5
29.026
28.160
28.376
M8 x 0.75
7.513
7.080
7.188
M30 x 2
28.701
27.546
27.835
M8 x 1
7.350
6.773
6.917
M36 x
1.5
35.026
34.160
34.376
M10 x
0.75
9.513
9.080
9.188
M36 x 2
34.701
33.546
33.835
M10 x 1
9.350
8.773
8.917
M42 x
1.5
41.026
40.160
40.376
M12 x 1
11.350
10.773
10.917
M42 x 2
40.701
39.546
39.835
M12 x
1.25
11.188
10.466
10.647
M46 x
1.5
47.026
46.160
46.376
M16 x 1
15.350
14.773
14.917
M48 x 2
46.701
45.546
45.835
