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+
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The hex head screws with a flat and split lock washer, combine a screw, flat washer, and split lock washer into one assembly, this makes it easy and efficient to install, which no need to search or install each part separately. It can save time and enhance the connection's reliability and security.
The flat washer and split lock washer ensure a strong, stable connection. The washers work together to prevent the screw from loosening, even under stress or vibration. and the flat washer increases the contact area between the screw and the surface, spreading the pressure evenly and protecting the material from damage during installation.
The split lock washer's elasticity helps absorb vibration, reducing the risk of the screw from loosening and making it perfect for use in vibration environments.
The hex head screws with a flat and split lock washer are perfect for securing machinery parts, equipment, and structures. and ideal for use in environments exposed to vibration, moisture, or outdoor conditions, like in construction, automotive, and industrial machinery.
Specification

|
Metric |
k |
S |
|||||
|
Diameter |
A |
max |
min |
||||
|
d |
max |
min |
max |
min |
A |
B |
|
|
M3 |
2.52 |
2.28 |
/ |
/ |
5.5 |
5.32 |
/ |
|
M4 |
2.92 |
2.62 |
3 |
2.8 |
7 |
6.78 |
6.64 |
|
M5 |
3.65 |
3.35 |
3.74 |
3.26 |
8 |
7.78 |
7.64 |
|
M6 |
4.15 |
3.85 |
3.74 |
3.26 |
10 |
9.78 |
9.64 |
|
M9 |
5.45 |
5.15 |
5.54 |
5.06 |
13 |
12.73 |
12.57 |
|
M10 |
6.56 |
6.22 |
6.69 |
6.11 |
17 |
16.73 |
16.57 |
|
M12 |
7.68 |
7.32 |
7.79 |
7.21 |
19 |
18.67 |
18.48 |
|
M14 |
8.98 |
8.62 |
9.09 |
8.51 |
22 |
21.67 |
21.16 |
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.

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