ASME B18.6.9:2010 Type A Wing Nut uses two side wings for hand tightening and removal, making it suitable for frequent adjustment, quick clamping, or tool-free fastening. The Type A form allows fingers to apply torque efficiently and improves on-site operation.
This product can be used in fixtures, access covers, light equipment, furniture hardware, display equipment, and temporary fixing devices. The wing shape makes the fastener easy to identify and operate, especially for hand-tightened joints that do not require high torque.
Steel, stainless steel, or finished versions can be selected according to the service environment to meet rust protection, appearance, and repeated-use requirements.

Dimensions unit: inch
|
Thread Size d |
3# Heavy Type |
4# Heavy Type |
5# Light Type |
5# Heavy Type |
6# Light Type |
6# Heavy Type |
8# Light Type |
8# Heavy Type |
10# Light Type |
10# Heavy Type |
12# Light Type |
12# Heavy Type |
1/4 Heavy Type |
1/4 Light Standard Type |
|
|
PP |
Threads Per Inch |
48 |
40 |
40 |
40 |
32 |
32 |
32 |
32 |
24 |
24 |
24 |
24 |
20 |
20 |
|
Threads Per Inch |
56 |
48 |
44 |
44 |
40 |
40 |
36 |
36 |
32 |
32 |
28 |
28 |
28 |
28 |
|
|
n |
Max. |
0.72 |
0.72 |
0.72 |
0.91 |
0.72 |
0.91 |
0.91 |
1.1 |
0.91 |
1.1 |
1.1 |
1.25 |
1.1 |
1.25 |
|
Min. |
0.59 |
0.59 |
0.59 |
0.78 |
0.59 |
0.78 |
0.78 |
0.97 |
0.78 |
0.97 |
0.97 |
1.12 |
0.97 |
1.12 |
|
|
H |
Max. |
0.41 |
0.41 |
0.41 |
0.47 |
0.41 |
0.47 |
0.47 |
0.57 |
0.47 |
0.57 |
0.57 |
0.66 |
0.57 |
0.66 |
|
Min. |
0.28 |
0.28 |
0.28 |
0.34 |
0.28 |
0.34 |
0.34 |
0.43 |
0.34 |
0.43 |
0.43 |
0.53 |
0.43 |
0.53 |
|
|
h |
Max. |
0.11 |
0.11 |
0.11 |
0.14 |
0.11 |
0.14 |
0.14 |
0.18 |
0.14 |
0.18 |
0.18 |
0.21 |
0.18 |
0.21 |
|
Min. |
0.07 |
0.07 |
0.07 |
0.1 |
0.07 |
0.1 |
0.1 |
0.14 |
0.1 |
0.14 |
0.14 |
0.17 |
0.14 |
0.17 |
|
|
d1 |
Max. |
0.21 |
0.21 |
0.21 |
0.27 |
0.21 |
0.27 |
0.27 |
0.33 |
0.27 |
0.33 |
0.33 |
0.39 |
0.33 |
0.39 |
|
Min. |
0.17 |
0.17 |
0.17 |
0.22 |
0.17 |
0.22 |
0.22 |
0.26 |
0.22 |
0.26 |
0.26 |
0.32 |
0.26 |
0.32 |
|
|
dk |
Max. |
0.33 |
0.33 |
0.33 |
0.43 |
0.33 |
0.43 |
0.43 |
0.5 |
0.43 |
0.5 |
0.5 |
0.58 |
0.5 |
0.58 |
|
Min. |
0.29 |
0.29 |
0.29 |
0.39 |
0.29 |
0.39 |
0.39 |
0.45 |
0.39 |
0.45 |
0.45 |
0.51 |
0.45 |
0.51 |
|
|
k |
Max. |
0.14 |
0.14 |
0.14 |
0.18 |
0.14 |
0.18 |
0.18 |
0.22 |
0.18 |
0.22 |
0.22 |
0.25 |
0.22 |
0.25 |
|
Min. |
0.1 |
0.1 |
0.1 |
0.14 |
0.1 |
0.14 |
0.14 |
0.17 |
0.14 |
0.17 |
0.17 |
0.2 |
0.17 |
0.2 |
|
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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