DIN 508:2002 T-Slot Nut is used in machine-tool tables, fixture bases, and clamping systems with T-slots. The T-shaped body slides and locates within the slot, forming an adjustable clamping point when used with bolts or clamp plates.
It is widely applied on milling machines, drilling machines, machining centers, inspection platforms, and assembly fixtures. Its key advantage is the ability to move along the slot to suit different clamping positions and workpiece sizes while providing dependable tensile and anti-slip performance after tightening.
The correct model can be selected according to T-slot size, thread specification, and load requirement. Material strength and surface finish can also be matched to operating frequency, machining environment, and maintenance interval.

Dimensions unit: mm
|
Thread size d |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
M16 |
M20 |
M24 |
M30 |
M36 |
M42 |
M48 |
|
|
P |
Pitch |
0.7 |
0.8 |
1 |
1.25 |
1.5 |
1.75 |
2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
|
a |
Nominal |
5 |
6 |
8 |
10 |
12 |
14 |
18 |
22 |
28 |
36 |
42 |
48 |
54 |
|
Max. |
4.7 |
5.7 |
7.7 |
9.7 |
11.7 |
13.7 |
17.7 |
21.7 |
27.7 |
35.6 |
41.6 |
47.6 |
53.6 |
|
|
Min. |
4.5 |
5.5 |
7.5 |
9.5 |
11.4 |
13.4 |
17.4 |
21.4 |
27.4 |
35.3 |
41.3 |
47.3 |
53.2 |
|
|
s |
Max. |
9 |
10 |
13 |
15 |
18 |
22 |
28 |
35 |
44 |
54 |
65 |
75 |
85 |
|
Min. |
8.5 |
9.5 |
12.5 |
14.5 |
17.5 |
21.5 |
27.5 |
34.5 |
43 |
53 |
64 |
74 |
84 |
|
|
f |
1 |
1.6 |
1.6 |
1.6 |
2.5 |
2.5 |
2.5 |
2.5 |
4 |
6 |
6 |
6 |
6 |
|
|
h |
6.5 |
8 |
10 |
12 |
14 |
16 |
20 |
28 |
36 |
44 |
52 |
60 |
70 |
|
|
k |
Max. |
3 |
4 |
6 |
6 |
7 |
8 |
10 |
14 |
18 |
22 |
26 |
30 |
34 |
|
Min. |
2.7 |
3.5 |
5.5 |
5.5 |
6.5 |
7.5 |
9.5 |
13.5 |
17 |
21 |
25 |
29 |
33 |
|
|
For T-slots according to DIN 650 |
5 |
6 |
8 |
10 |
12 |
14 |
18 |
22 |
28 |
36 |
42 |
48 |
54 |
|
|
Weight per thousand pieces kg |
≈ |
2.5 |
4 |
10 |
18 |
24 |
35 |
75 |
165 |
345 |
770 |
1030 |
1550 |
2300 |
ABOUT US
Better Fastener is a professional fastener enterprise specializing in the manufacturing of steel washers, stainless steel washers, spring washers and sealingwashers. Founded in 2001 as a washer factory, the company expanded into a comprehensive enterprise integrating washers, nuts, bolts, spring nuts and other fastener products in 2010.
The company positions itself as a provider of comprehensive one-stop services for customers, relying on technological R&D, industrial investment and trade distribution.
With an experienced professional team and a sound sales network, Better Fastener has achieved excellent sales performance in both domestic and foreign markets,and has grown into one of the competitive manufacturers and suppliers in China's industrial fastener industry.
Better Fastener is committed to becoming a trusted fastener supplier for customers with reliable product quality, reasonable prices and on-time delivery
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