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18
+
YEARS OF EXPERIENCE
3000㎡+
FLOOR SPACE
160
+
MACHINERY EQUIPMENT
3500
+
SATISFIED CUSTOMERS
The countersunk head captive screws are designed for the components that need to stay securely fastened over long periods. These screws provide excellent stability and strength. With materials SS304 and SS316, they offer strong corrosion resistance, and are ideal for use in harsh environments, especially in areas exposed to moisture, chemicals, or extreme weather conditions.
The countersunk head design allows these screws to sit flush with the surface, providing a clean and smooth finish. This special design can prevent loosening over time, even under high stress. Whether exposed to overload or constant vibrations, they will remain securely in place, reducing the frequency of maintenance and reinstallation.
The countersunk head captive screw is a reliable, durable solution for applications that require long-term fastening with minimal maintenance, especially in vibrations, shocks, or corrosion environments.
Specification
|
Specification |
Dk |
H |
Ds |
L |
d |
Pitch |
|||||
|
M2 |
3.7 |
4.1 |
90° |
/ |
1.5 |
1.6 |
3.7 |
4.3 |
1.89 |
1.98 |
0.4 |
|
M2.5 |
4.7 |
5 |
90° |
/ |
1.8 |
1.9 |
3.7 |
4.3 |
2.38 |
2.48 |
0.45 |
|
M3 |
5.7 |
6 |
90° |
/ |
1.86 |
2 |
3.7 |
4.3 |
2.87 |
2.98 |
0.5 |
|
M4 |
7.6 |
8 |
90° |
/ |
2.66 |
2.8 |
5.7 |
6.3 |
3.84 |
3.98 |
0.7 |
|
M5 |
9.64 |
10 |
90° |
/ |
3.32 |
3.5 |
7.7 |
8.3 |
4.83 |
4.97 |
0.8 |
|
M6 |
11.57 |
12 |
90° |
/ |
4.32 |
4.5 |
9.6 |
10.4 |
5.82 |
5.97 |
1 |
|
M8 |
15.57 |
16 |
90° |
/ |
5.32 |
5.5 |
11.6 |
12.4 |
7.79 |
7.96 |
1.25 |
|
M10 |
19.48 |
20 |
90° |
/ |
6.78 |
7 |
14.5 |
15.5 |
9.77 |
9.96 |
1.5 |
|
M12 |
23.48 |
24 |
90° |
/ |
9.8 |
10.1 |
19.5 |
20.5 |
11.76 |
11.95 |
1.75 |
Product Picture
Production Process
Quality Control
Surface Treatment
Offer a variety of surface treatments for our screws to meet different needs and environmental conditions. Such as zinc plating, nickel plating, hot-dip galvanizing, anodizing, zinc nickel alloy, dacromet coating, phosphating, etc.
Custom Service
With 18 years of experience in the fasteners area, Zeyao Hardware specializes in manufacturing custom fasteners, including screws, bolts, nuts, rivets, standoffs, spacers, wrenches, pins, and more. Welcome to send your inquiries to get a free quote.
FAQ
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