TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)

TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)

$27.95

🚚 Free Canada-wide shipping on orders over $199

Premium TC Bros Threaded Steel Bungs - Standard Style

TC Bros standard threaded steel bungs are essential fabrication components for custom motorcycle builds. These precision-manufactured bungs provide secure, threaded mounting points for gas tanks, seat pans, fenders, battery boxes, and countless other components. Available in two thread sizes and three lengths to accommodate various mounting applications.

Available Options:

Thread Sizes: 5/16-18 or 3/8-16
Lengths: 1/2", 1", or 1.5"

  • 5/16-18 Thread / 1/2" Long - Compact size for tight spaces and lighter components
  • 5/16-18 Thread / 1" Long - Standard length for most applications
  • 5/16-18 Thread / 1.5" Long - Extended length for thicker materials or additional thread engagement
  • 3/8-16 Thread / 1/2" Long - Larger thread for heavier components in compact spaces
  • 3/8-16 Thread / 1" Long - Most popular size for general fabrication
  • 3/8-16 Thread / 1.5" Long - Maximum strength for heavy-duty applications

Key Features:

  • Precision Threading - Clean, accurate threads for reliable fastener engagement
  • Standard Design - Flat base for welding to flat surfaces and tubing
  • Multiple Sizes - Six configurations to match your specific needs
  • Quality Steel Construction - Durable materials for long-lasting performance
  • Professional Quality - Manufactured to TC Bros' exacting standards
  • Versatile Applications - Suitable for countless mounting scenarios

Common Applications:

  • Gas tank mounting
  • Seat pan mounting
  • Fender mounting
  • Battery box mounting
  • Tool box mounting
  • Sissy bar mounting
  • Luggage rack mounting
  • Accessory mounting points
  • Custom fabrication projects

Other Fabrication Hardware Options:

Depending on your specific application, you might need a different style of bung or mounting solution:

Alternative Bung Styles:

  • Coped Steel Bungs - Feature a curved notch that fits flush on round tubing for a professional, finished appearance. Perfect when welding to frame tubes or round bars.
  • Counterbore Steel Bungs - Designed specifically for socket head bolts with a recessed counterbore that allows the bolt head to sit flush. Ideal for clean, low-profile installations.
  • Radius Style Steel Bungs - Feature a radiused base for improved weld penetration and strength. Best choice for high-stress applications.

Non-Threaded Mounting Solutions:

  • Weld-On Steel Mounting Tabs - When you need to mount brackets, fenders, or accessories without threaded fasteners, our mounting tabs provide secure weld-on mounting points in 7 different styles.

Specifications:

  • Material: Steel
  • Thread Sizes: 5/16-18 or 3/8-16
  • Lengths: 1/2", 1", or 1.5"
  • Style: Standard (flat base)
  • Finish: Raw steel (ready for welding and finishing)

Perfect For:

  • Custom motorcycle frame building
  • Chopper and bobber builds
  • Cafe racer and tracker conversions
  • Vintage motorcycle restorations
  • Accessory installations
  • Frame modifications and upgrades
  • Professional fabrication shops
  • DIY custom builders

Installation Notes:

These bungs are designed to be welded onto your motorcycle frame, gas tank, fenders, or other components at the desired mounting location. Proper positioning and alignment are critical for correct fitment and function. We recommend:

  • Test-fit components before welding bungs in place
  • Ensure proper clearance for fasteners and moving parts
  • Use appropriate welding techniques for your material
  • Clean and prep mounting area before welding
  • Paint or powder coat after installation to prevent rust
  • Use correct thread size for your application (5/16-18 for lighter components, 3/8-16 for heavier)

Professional installation is recommended if you're not experienced with welding and frame fabrication. Each TC Bros steel bung is precision-manufactured to exacting standards for reliable performance on your custom motorcycle build.