Welding Bung
Your Professional Welding Bung Supplier
Jiangsu CN Tech Co., Ltd. is located in the Shanbei Industrial Zone of Wuxi City, approximately 100 kilometers from Shanghai. Leveraging professional expertise and extensive experience in industrial manufacturing, the company specializes in the design, development, and production of rod ends, spherical plain bearings, transmission linkages, suspension arms, brake calipers, and pedal boxes. In addition, we offer comprehensive system solutions and customized products to meet specific customer requirements.
Our product portfolio includes rod end joints, spherical bearing joints, joint accessories and related components, linkage rods, suspension arms, brake calipers, pedal boxes, handbrakes, brake system accessories, and other automotive parts.
Why Choose us
Global Market Experience
Products are widely exported to Europe and North America and used in demanding industries such as industrial equipment, motorsport, automation, and aerospace, proving stable quality and international competitiveness.
Complete Product Range & Custom Solutions
The company offers a full range of rod ends, spherical bearings, linkages, suspension parts, and related components, with strong customization capability to meet different application needs.
Quality Control
With strict quality control, ISO-certified management, and responsive technical and after-sales support, the company ensures consistent performance, reliable delivery, and long-term customer value.
Parameter
|
Part No. |
Data sheet-inch or metric thread |
||||||
|
Metric add "M" to prefix to number |
G (UNF-2B) |
G (Metric) |
D1 |
D2 |
L1 |
L2 |
Fit tube OD x Wall |
|
BUN6R(L)-1 |
3/8-24 |
M10 (or x1.25) |
0.750 |
0.625 |
1.125 |
0.6 |
0.75x0.058 |
|
BUN6R(L)-2 |
3/8-24 |
M10 (or x1.25) |
0.750 |
0.55 |
1.125 |
0.6 |
0.75*0.095 |
|
BUN6R(L)-3 |
3/8-24 |
M10 (or x1.25) |
1.000 |
0.827 |
1.125 |
0.75 |
1.00*0.095 |
|
BUN7R(L)-1 |
7/16-20 |
M12 (or x1.5 or x1.25) |
1.000 |
0.866 |
1.55 |
0.75 |
1.00x0.065 |
|
BUN8R(L)-1 |
1/2-20 |
M12 (or x1.5 or x1.25) |
1.000 |
0.866 |
1.70 |
0.85 |
1.00x0.065 |
|
BUN8R(L)-2 |
1/2-20 |
M12 (or x1.5 or x1.25) |
1.000 |
0.827 |
1.70 |
0.85 |
1.00x0.083 |
|
BUN8R(L)-3 |
1/2-20 |
M12 (or x1.5 or x1.25) |
1.000 |
0.827 |
1.70 |
0.85 |
1.00x0.095 |
|
BUN8R(L)-4 |
1/2-20 |
M12 (or x1.5 or x1.25) |
1.125 |
0.866 |
1.70 |
0.85 |
1.125x0.12 |
|
BUN10R(L)-1 |
5/8-18 |
M14, M16 (or x1.5) |
1.125 |
0.950 |
1.75 |
0.85 |
1.125x0.083 |
|
BUN10R(L)-2 |
5/8-18 |
M14, M16 (or x1.5) |
1.250 |
1.00 |
1.75 |
0.85 |
1.25x0.12 |
|
BUN10R(L)-3 |
5/8-18 |
M14, M16 (or x1.5) |
1.250 |
1.05 |
1.75 |
0.85 |
1.25x0.12 |
|
BUN10R(L)-4 |
5/8-18 |
M14, M16 (or x1.5) |
1.375 |
1.134 |
1.75 |
0.85 |
1.375x0.12 |
|
BUN12R(L)-1 |
3/4-16 |
M18x1.5, M20x1.5 |
1.250 |
1.05 |
1.75 |
0.9 |
1.25x0.095 |
|
BUN12R(L)-2 |
3/4-16 |
M18x1.5, M20x1.5 |
1.250 |
1.00 |
1.75 |
0.9 |
1.25x0.12 |
|
BUN12R(L)-3 |
3/4-16 |
M18x1.5, M20x1.5 |
1.500 |
1.00 |
1.75 |
0.9 |
1.50x0.25 |
|
BUN12R(L)-4 |
3/4-16 |
M18x1.5, M20x1.5 |
1.500 |
1.240 |
1.75 |
0.9 |
1.50x0.12 |
|
BUN12R(L)-5H |
3/4-16 |
M18x1.5, M20x1.5 |
1.250 |
1.05 |
1.75 |
0.9 |
1.25x0.095 |
|
BUN12R(L)-6 |
3/4-16 |
M18x1.5, M20x1.5 |
1.375 |
1.134 |
1.75 |
0.9 |
1.375x0.12 |
|
BUN14R(L)-1 |
7/8-14 |
M22x1.5 |
1.500 |
1.185 |
1.75 |
0.9 |
1.50x0.15 |
|
BUN14R(L)-2 |
7/8-14 |
M22x1.5 |
1.500 |
1.245 |
1.75 |
0.9 |
1.50x0.12 |
|
BUN14R(L)-3 |
7/8-14 |
M22x1.5 |
1.750 |
1.358 |
2.00 |
1.00 |
1.75x0.188 |
|
BUN14R(L)-4 |
7/8-14 |
M22x1.5 |
1.750 |
1.245 |
2.00 |
1.00 |
1.75x0.25 |
|
BUN16R(L)-1 |
1-12/1-14 |
M24, M27(x1.5 or 2) |
1.750 |
1.490 |
2.50 |
1.25 |
1.75x0.12 |
|
BUN16R(L)-2 |
1-12/1-14 |
M24, M27(x1.5 or 2) |
1.750 |
1.240 |
2.50 |
1.25 |
1.75x0.188 |
|
BUN16R(L)-3 |
1-12/1-14 |
M24, M27(x1.5 or 2) |
1.750 |
1.358 |
2.50 |
1.25 |
1.75x0.25 |
|
BUN16R(L)-4 |
1-12/1-14 |
M24, M27(x1.5 or 2) |
2.000 |
1.490 |
2.50 |
1.25 |
2.00x0.25 |
|
BUN1.25"R(L)-1 |
11/4-12 |
M30, M33(x1.5 or 2) |
1.750 |
1.490 |
2.50 |
1.25 |
1.75x0.12 |
|
BUN1.25"R(L)-2 |
11/4-12 |
M30, M33(x1.5 or 2) |
2.00 |
1.490 |
2.50 |
1.25 |
2.00x0.25 |
|
BUN1.25"R(L)-3 |
11/4-12 |
M30, M33(x1.5 or 2) |
2.50 |
1.990 |
2.50 |
1.25 |
2.50x0.25 |

Benefits of Welding Bung
High Quality: Our weld bung is made of premium quality aluminum alloy,with good corrosion resistance and high strength.Use testing equipment to strictly control product quality and ensure that the product meets standards.
Fine craftsmanship: The thread is complete and deep,with a smooth and clean surface,and the force is uniform and not easy to detach.
Step Deisign: The welding port adopts a step design,making the aluminum weld bung difficult to move during welding and more convenient to install.
Exquisite Appearance: Precision oil pressure structure is stable,polished and polished without burrs,hard and round,sturdy and beautiful.
Wide Application: Can be used for fuel,engine oil,coolant,air,reservoir and catch can,etc.
Applications of Welding Bung
Automotive Exhaust Systems
Welding bungs for oxygen sensors (O2 sensors) or EGT (exhaust gas temperature) sensors into exhaust pipes or headers. Adding bungs for wideband O2 sensors in performance or tuning applications.
Fuel Tanks and Lines
Installing bungs for fuel level sensors, pressure sensors, or fuel fittings.
Industrial Plumbing and Piping
Adding bungs for pressure gauges, temperature sensors, or drain valves in pipelines or tanks.
Custom Fabrication
Creating connection points for sensors or accessories in custom-built equipment or machinery.
Logistics
We will help you to choose the best shipping way according to your detail requirements. By sea, by air, or by express, etc.
The time frame of an order delivery is divided into two parts
Processing time: 7-14 Days
Shipping time: 20~30 Days
Shipping methods
DDP, DAP, EXW, etc.
Shipping fee
The shipping fee will be changed according to every pacel's weight.
Certificate




FAQ
As one of the leading welding bung manufacturers and suppliers in China, we warmly welcome you to wholesale high-grade welding bung made in China here from our factory. All customized products are with high quality and competitive price.
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