High-precision custom shoulder bolts manufacturing
We provide a one-stop solution for fasteners, from material selection and precision machining to surface treatment. We support small-batch customization and offer quick quotes within 24 hours.
18
+
YEARS OF EXPERIENCE
3000㎡+
FLOOR SPACE
160
+
MACHINERY EQUIPMENT
3500
+
SATISFIED CUSTOMERS
Material Selection
- Stainless Steel: 303, 304, 316, 416.
- Alloy Steel: SCM435, 40Cr, Grade 12.9.
- Carbon Steel: 1018, 1045.
- Non-ferrous Metals: Brass, Aluminum Alloy.
Surface Treatment Options
- Electroplating (Blue/White Zinc, Chromate),
- Black Oxide,
- Passivation,
- Dacromet,
- Teflon coating, etc.
Specification
|
D1 |
E |
T |
J |
D |
A |
H |
||||
|
Size |
Pitch |
Max |
Min |
Max |
Min |
Max |
Min |
Max |
Min |
|
|
M2 |
0.4 |
4 |
2.48 |
2.45 |
5 |
4.78 |
2.5 |
2.32 |
||
|
M2.5 |
0.45 |
5 |
2.98 |
2.95 |
6 |
5.78 |
3 |
2.78 |
||
|
M3 |
0.5 |
6 |
2.4 |
3 |
3.98 |
3.95 |
7 |
6.78 |
3.5 |
3.32 |
|
M4 |
0.7 |
8 |
2.4 |
3 |
4.98 |
4.95 |
9 |
8.78 |
3.5 |
3.32 |
|
M5 |
0.8 |
9.75 |
2.4 |
3 |
5.98 |
5.95 |
10 |
9.78 |
4.5 |
4.32 |
|
M5 |
0.8 |
9.75 |
2.4 |
3 |
6.48 |
6.45 |
10 |
9.78 |
4.5 |
4.32 |
|
M6 |
1 |
11.25 |
3.3 |
4 |
7.98 |
7.95 |
13 |
12.73 |
5.5 |
5.32 |
|
M8 |
1.25 |
13.25 |
4.2 |
5 |
9.98 |
9.95 |
16 |
15.73 |
7 |
6.78 |
|
M10 |
1.5 |
16.4 |
4.9 |
6 |
11.98 |
11.94 |
18 |
17.43 |
9 |
8.78 |
|
M10 |
1.5 |
16.4 |
4.9 |
6 |
12.98 |
12.94 |
18 |
17.43 |
9 |
8.78 |
|
M12 |
1.75 |
18.4 |
6.6 |
8 |
15.98 |
15.94 |
24 |
23.67 |
11 |
10.73 |
|
M16 |
2 |
22.4 |
8.8 |
10 |
19.98 |
19.92 |
30 |
29.67 |
14 |
13.73 |
Product Picture
Production Process
Raw Material Preparation: Select appropriate materials according to customer requirements, such as stainless steel, carbon steel, aluminum, etc.
Cutting and Forming: Cut the raw materials to the required length and perform initial forming.
Turning and Grinding: Precisely machine the threads, shoulders, and head shape through turning.
Heat Treatment: Perform heat treatment as needed to ensure the hardness and strength of the bolts meet the standards.
Surface Treatment: Perform surface treatment, such as electroplating, black oxide coating, polishing, etc., to improve corrosion resistance and aesthetics.
Quality Inspection: Conduct strict inspections of each bolt for dimensions, hardness, surface quality, etc.
Packaging and Shipping: Qualified bolts are packaged according to customer requirements and prepared for shipment.
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
ZEYAO Shoulder bolts can be customized in material, thread type, shoulder length, diameter, and head design. Options include custom hardness, finishes (e.g., zinc plating), coatings, and special features like grooves. Custom packaging is also available.
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