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Female Threaded Weld Bungs and Male Threaded Weld Fittings

Easily fabricate tanks of any kind with these threaded fittings. We offer a variety of male and female fittings in aluminum, mild steel, or stainless steel to match your project. Choose AN (SAE straight thread), NPT (tapered thread), or metric. (M18x1.5 is the standard thread for oxygen sensors.)

Recent Top Seller for this product group

Female Aluminum Metric Weld Bung

Female Aluminum Metric Weld Bung

Use these Metric weld bungs to ensure your sensors and metric plumbing don't need a chain of adapters.

ImagePart No.DescriptionPriceStatus
Aluminum
Female Aluminum AN Weld Bung (O-ring Port)

3228-126-Size 

Female Aluminum AN Weld Bung (O-ring Port)

 
5.0
$3.99
to
$7.29*
In Stock
Female Aluminum NPT Weld Bung

3228-125-Size 

Female Aluminum NPT Weld Bung

 
5.0
$4.19
to
$9.99*
In Stock
Female Aluminum Metric Weld Bung

3228-124-Size 

Female Aluminum Metric Weld Bung

$5.39
to
$6.89
In Stock
AN971 Aluminum Male AN Weld Fitting

3269-Size 

AN971 Aluminum Male AN Weld Fitting

 
5.0
$4.99
to
$36.99*
In Stock
ARP Aluminum Male AN Weld Fitting, 6AN

ARP800-8106 

ARP Aluminum Male AN Weld Fitting, 6AN

$11.45In Stock
ARP Aluminum Male AN Weld Fitting, 10AN

ARP800-8108 

ARP Aluminum Male AN Weld Fitting, 10AN

$12.90In Stock
Steel
Female Steel AN Weld Bung (O-ring Port)

AF996S-Size 

Female Steel AN Weld Bung (O-ring Port)

 
5.0
$4.59
to
$8.49*
In Stock
Weld-in Bung, 5/8-18 for Mechanical Temp Gauges, Steel

AM2261 

Weld-in Bung, 5/8-18 for Mechanical Temp Gauges, Steel

$16.81In Stock
Female Steel NPT Weld Bung

3228-123-Size 

Female Steel NPT Weld Bung

$4.49In Stock
Weld-in Bung, 1/8 NPT for Electrical Gauges, Steel

AM2260 

Weld-in Bung, 1/8 NPT for Electrical Gauges, Steel

$14.57In Stock
ARP Female Steel Weld Bung, 1/4 NPT

ARP800-8201 

ARP Female Steel Weld Bung, 1/4 NPT

$11.06In Stock
ARP Female Steel Weld Bung, 1/2 NPT

ARP800-8203 

ARP Female Steel Weld Bung, 1/2 NPT

$11.45In Stock
Mild Steel Weld Fitting for O2 Sensor, 1/2" Reach w/Plug

3878-3735 

Mild Steel Weld Fitting for O2 Sensor, 1/2" Reach w/Plug

$11.49In Stock
Mild Steel Weld Bung for O2 Sensor, 1" Reach w/Plug

3878-3764 

Mild Steel Weld Bung for O2 Sensor, 1" Reach w/Plug

$11.49In Stock
Mild Steel Weld Fitting for O2 Sensor, 45 Degree Angled

3228-127 

Mild Steel Weld Fitting for O2 Sensor, 45 Degree Angled

 
5.0
$10.99In Stock
AN Steel Tube Braze Fitting

3259-Size-Size 

AN Steel Tube Braze Fitting

 
4.8
$4.19
to
$9.59*
In Stock
Stainless Steel
Female Stainless Steel AN Weld Bung (O-ring Port)

AF996SS-Size 

Female Stainless Steel AN Weld Bung (O-ring Port)

 
5.0
$11.49
to
$24.79
In Stock
Stainless Weld Bung for O2 Sensor, 18 x 1.5mm

AF991SS 

Stainless Weld Bung for O2 Sensor, 18 x 1.5mm

$10.99In Stock
Stainless Weld Bung for O2 Sensor, 1 Inch Long with Plug

3878-3838 

Stainless Weld Bung for O2 Sensor, 1 Inch Long with Plug

$11.49In Stock
Stainless Steel 6AN Male Weld Fitting

3269-06SS 

Stainless Steel 6AN Male Weld Fitting

$13.99In Stock
Stainless Steel 8AN Male Weld Fitting

3269-08SS 

Stainless Steel 8AN Male Weld Fitting

$15.99In Stock

  * Quantity Pricing Available