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Aluminum Stepped NPT bungs
SNPT-AL$4.25 - $5.75Aluminum NPT Weld-In Bungs – 6061-T6 – Multiple Sizes Available Our 6061-T6 aluminum NPT weld-in bungs are expertly machined from high-strength round stock and tapped to your selected NPT thread size... -
Stainless Stepped NPT bungs
SNPT-SS$4.95 - $11.95Stainless Steel NPT Weld-In Bungs – Multiple Sizes Available Our premium 300 series stainless steel NPT threaded weld-in bungs are precision-machined from solid round stock and tapped to your... -
Steel NPT Bungs
NPT 83$3.00 - $5.501018 Mild Steel NPT Weld-In Bungs – Multiple Sizes Available These NPT weld-in bungs are precision-machined from solid 1018 cold rolled mild steel bar stock, then drilled -
Stainless NPT Bungs
NPTss$3.75 - $5.50Stainless Steel NPT Weld-In Bungs – Precision Machined These stainless steel NPT weld-in bungs are machined from solid stainless steel bar stock, then drilled and tapped to -
Aluminum NPT Bungs
NPTal$3.75 - $5.506061 Aluminum NPT Weld-In Bungs – Lightweight & Corrosion-Resistant These NPT weld-in bungs are precision-machined from solid 6061-T6 aluminum bar stock and tapped to
Description
1018 Mild Steel NPT Weld-In Bungs – Multiple Thread Sizes Available
These weld-in NPT threaded bungs are precision-machined from solid 1018 cold rolled mild steel round stock, drilled and tapped to your selected NPT thread size. Known for its excellent weldability and machinability, 1018 steel provides strong, clean welds—making it a trusted choice for custom fabrication.
Each bung includes a .200" machined step, designed to make it easy to maintain consistent standoff height across your project. The oversized flange diameter adds more weld surface area for greater strength and reliability in high-stress applications.
Perfect for fabricators and builders creating custom oil tanks, gas tanks, coolant reservoirs, and other fluid containers.
Available Sizes & Pricing:
| NPT Thread | Overall Length | Flange Diameter | Stepped Diameter | Price |
|---|---|---|---|---|
| 1/8" NPT | 1/2" | 3/4" | 1/2" | $4.25 |
| 1/4" NPT | 1/2" | 7/8" | 5/8" | $4.25 |
| 3/8" NPT | 0.600" | 1" | 13/16" | $4.75 |
| 1/2" NPT | 0.650" | 1-1/4" | 1" | $5.75 |
Key Features:
Made from durable 1018 cold rolled mild steel
Excellent weldability and strength for long-lasting performance
Built-in .200" step ensures consistent standoff height
Precision NPT threading for leak-free connections
Ideal for use in custom fuel, oil, and fluid tanks
These bungs are a must-have for DIY builders, performance shops, and custom motorcycle or automotive fabricators.