DIN 7:1981 Dowel Pin is characterized by a precision cylindrical dowel pin structure and is intended for mechanical structures requiring accurate hole-to-hole positioning, guidance, and repeatable assembly reference.
The cylindrical body fits reamed or locating holes, mainly carrying shear and positioning loads without relying on threads, improving assembly consistency. In assembly, the design helps reduce supporting operations, improve positioning consistency, and maintain good interchangeability in repeated production or field service.
Typical applications include molds, fixtures, gearboxes, equipment frames, locating plates, and transmission components. The product can be configured with tolerance grade, chamfer form, material hardness, and surface roughness to suit indoor, outdoor, light-load, vibration-exposed, or export supply conditions.

Dimensions unit: inch
|
Nominal diameter d |
0.8 |
1 |
1.2 |
1.5 |
2 |
2.5 |
3 |
4 |
5 |
6 |
||
|
d |
m6 |
Max. |
- |
1.008 |
1.208 |
1.508 |
2.008 |
2.508 |
3.008 |
4.012 |
5.012 |
6.012 |
|
Min. |
- |
1.002 |
1.202 |
1.502 |
2.002 |
2.502 |
3.002 |
4.004 |
5.004 |
6.004 |
||
|
h8 |
Max. |
0.8 |
1 |
1.2 |
1.5 |
2 |
2.5 |
3 |
4 |
5 |
6 |
|
|
Min. |
0.786 |
0.986 |
1.186 |
1.486 |
1.986 |
2.486 |
2.986 |
3.982 |
4.982 |
5.982 |
||
|
h11 |
Max. |
0.8 |
1 |
1.2 |
1.5 |
2 |
2.5 |
3 |
4 |
5 |
6 |
|
|
Min. |
0.74 |
0.94 |
1.14 |
1.44 |
1.94 |
2.44 |
2.94 |
3.925 |
4.925 |
5.925 |
||
|
c |
Max. |
|
0.12 |
0.15 |
0.18 |
0.23 |
0.3 |
0.4 |
0.45 |
0.6 |
0.75 |
0.9 |
|
Thousand pieces of steel weigh ≈kg |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
||
|
Nominal diameter d |
8 |
10 |
12 |
14 |
16 |
20 |
25 |
30 |
40 |
50 |
||
|
d |
m6 |
Max. |
8.015 |
10.015 |
12.018 |
14.018 |
16.018 |
20.021 |
25.021 |
30.021 |
40.025 |
50.025 |
|
Min. |
8.006 |
10.006 |
12.007 |
14.007 |
16.007 |
20.008 |
25.008 |
30.008 |
40.009 |
50.009 |
||
|
h8 |
Max. |
8 |
10 |
12 |
14 |
16 |
20 |
25 |
30 |
40 |
50 |
|
|
Min. |
7.978 |
9.978 |
11.973 |
13.973 |
15.973 |
19.967 |
24.967 |
29.967 |
39.961 |
49.961 |
||
|
h11 |
Max. |
8 |
10 |
12 |
14 |
16 |
20 |
25 |
30 |
40 |
50 |
|
|
Min. |
7.91 |
9.91 |
11.89 |
13.89 |
15.89 |
19.87 |
24.87 |
29.87 |
39.84 |
49.84 |
||
|
c |
Max. |
1.2 |
1.5 |
1.8 |
2 |
2.5 |
3 |
4 |
4.5 |
6 |
7.5 |
|
|
Thousand pieces of steel weigh ≈kg |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
||
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
NEWS