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

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

Name: TC Bros Threaded Steel Bungs - Standard (5/16-18 & 3/8-16)
Brand: TC Bros
Price: 27.95 CAD
Availability: InStock

$27.95

🚚 Free Canada-wide shipping on orders over $199 (excluding oversized items)

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.

TC Bros Universal Frisco Gas Tank Mounting Kit

Mount your gas tank with confidence using this complete Frisco-style mounting kit. Everything you need for a professional, secure installation on custom choppers and bobbers.

Complete Kit Includes

3/8-16 stainless steel button head bolts - Corrosion-resistant hardware for long-lasting durability
1018 mild steel tophat bungs - Precision-engineered weld-on mounts for secure tank attachment
Leather cushion washers - Protect your tank finish and dampen vibration
Stainless steel washers - Complete the professional installation

Key Features

Universal Frisco-style design - Classic mounting solution for custom gas tanks
Premium materials - Stainless steel fasteners resist rust and corrosion
Complete hardware package - No need to source individual components
Professional finish - Button head bolts provide a clean, low-profile look
Vibration dampening - Leather washers protect tank paint and reduce metal-to-metal contact

Applications

This mounting kit is ideal for custom motorcycle builders working on choppers, bobbers, and cafe racers. The Frisco-style mounting system is a time-tested solution that provides secure tank attachment while maintaining the clean lines of a custom build.

Installation Note: Tophat bungs require welding to the frame. Ensure proper fitment and alignment before welding.

TC Bros - Weld On Solo Seat Mount

$77.95

🚚 Free Canada-wide shipping on orders over $199 (excluding oversized items)

Build Your Dream Custom Seat with Professional-Grade Mounting Hardware

Transform your bobber or chopper build with TC Bros' precision-engineered Weld On Solo Seat Spring Mounts. These CNC-machined mounts deliver the rock-solid foundation your custom seat deserves, combining old-school craftsmanship with modern manufacturing precision.

Why Riders Choose These Mounts

Imagine the satisfaction of a perfectly mounted solo seat that moves with you on every ride—no rattles, no flex, just smooth suspension action from your torsion springs. These aren't stamped sheet metal brackets that'll fail after a season. They're machined from solid 1018 cold rolled steel, built to handle years of hard riding.

Key Features

CNC Machined Precision: Crafted from 1018 cold rolled steel for superior strength and durability
Universal Fit Design: 1 1/8" radius cope fits both 1" and 1 1/4" cross tubes seamlessly
Stainless Hardware: 5/16"-18 stainless steel studs resist corrosion and maintain clamping force
Torsion Spring Compatible: Engineered specifically for torsion-style seat springs
Weld-Ready Finish: Clean steel surface ready for your torch—no prep work needed
Complete Kit: Includes 2 mounts, 2 stainless washers, 2 studs, and 2 nylock nuts

Technical Specifications

Material: 1018 Cold Rolled Steel
Stud Thread: 5/16"-18
Base Diameter: 1"
Cope Radius: 1 1/8"
Tube Compatibility: 1" and 1 1/4" cross tubes
Finish: Raw steel (weld-ready)
Country of Origin: USA

What's in the Box

2 × CNC Machined Steel Mounts
2 × Stainless Steel Studs
2 × Stainless Steel Washers
2 × Nylock Nuts

Note: Seat springs sold separately

Installation Made Simple

The pre-coped radius means these mounts sit flush against your frame tube right out of the box. Position them where you want your seat, tack them in place, check your alignment, then lay down a solid bead. The universal design gives you complete freedom to position your seat exactly where it feels right for your build.

Built by Builders, for Builders

TC Bros understands what custom motorcycle fabricators need because they're fabricators themselves. These mounts represent the same quality and attention to detail you'll find throughout their entire line of chopper and bobber components.

Ready to mount your custom seat the right way? Add these professional-grade spring mounts to your cart and take the next step in your build.