British Thread (55° Flank Angle) - Optimum OPTIturn TU 2506 Betriebsanleitung

M 30
M 36
M 42
M 48
M 56
M 64
Denomi- Flank
nation of
thread diameter
d2 = D2
d x P
M2 x 0.2 1.870
M2.5 x 2.338
0.25
M3 x 0.35 2.773
M4 x 0.5 3.675
M5 x 0.5 4.675
M6 x 0.75 5.513
M8 x 0.75 7.513
M8 x 1 7.350
M10 x 9.513
0.75
M10 x 1 9.350
M12 x 1 11.350
M12 x 11.188
1.25
M16 x 1 15.350
3.24.2 British thread (55° flank angle)
BSW (Ww.): British Standard Withworth 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
Version 1.0.1 2014-05-16
3.5 27.727 25.706
4 33.402 31.093
4.5 39.077 36.479
5.5 44.752 41.866
5.5 52.428 49.252
6 60.103 56.639
Metric fine-pitch thread
Core Denomi-
diameter nation of
thread
Bolt Nut
d x P
1.755 1.783 M16 x
1.5
2.193 2.229 M20 x 1
2.571 2.621 M20 x
1.5
3.387 3.459 M24 x
1.5
4.387 4.459 M24 x 2
5.080 5.188 M30 x
1.5
7.080 7.188 M30 x 2
6.773 6.917 M36 x
1.5
9.080 9.188 M36 x 2
8.773 8.917 M42 x
1.5
10.773 10.917 M42 x 2
10.466 10.647 M46 x
1.5
14.773 14.917 M48 x 2
Original operating instructions
OPTIMUM
M A S C H I N E N - G E R M A N Y
26.211 2.147 1.894
31.670 2.454 2.165
37.129 2.760 2.436
41.866 3.067 2.706
49.252 3.374 2.977
56.639 3.681 3.248
Flank Core
diameter
diame-
Bolt Nut
ter
d2 = D2
15.026 14.160 14.376
19.350 18.773 18.917
19.026 18.160 18.376
23.026 22.160 22.376
22.701 21.546 21.835
29.026 28.160 28.376
28.701 27.546 27.835
35.026 34.160 34.376
34.701 33.546 33.835
41.026 40.160 40.376
40.701 39.546 39.835
47.026 46.160 46.376
46.701 45.546 45.835
TU2506 | TU2506V | TU2807 | TU2807V
0.505 26.5
0.577 32
0.650 37.5
0.722 43
0.794 50.5
0.866 58
Page 135
GB