Bungs

Leather Cushion Washers with 3/8 inch Hole 10 pack

These leather washers are perfect for protecting your paint and are more durable than rubber. The cushioning & dampening effect that these washers provide is perfect for installing between your frame and mounting tabs found on gas tanks, fenders, oil tanks, or anything else you want to protect from vibration. Also great for use under solo seat springs to prevent squeaking. Dimensions are 1 inch diameter x 3/8 inch hole x 1/8 inch thick. Sold in pack of 10 washers.

Radius Style Threaded 3/8-16 Short Length Steel Bungs 

Radius Style Threaded 3/8-16 Short Length Steel Bungs by TC Bros.

Save time and create professional quality mounts using these blind threaded radius bungs.

Perfect for mounting fenders or anything where you desire a clean, finished appearance.

Proudly made in the USA from premium American 1018 cold rolled steel for easy welding. 3/4" diameter x 1-1/4" long. See photos for all dimensions.

Sold in packs of 4

Radius Style Threaded 3/8-16 Long Length Steel Bungs

Save time and create professional quality mounts using these blind threaded radius bungs. Perfect for mounting fenders or anything where you desire a clean, finished appearance. Proudly made in the USA from premium American 1018 cold rolled steel for easy welding. 3/4" diameter x 1-3/4" long. See photos for all dimensions. Sold in packs of 4.

Counterbore Steel Bungs for 3/8 Socket Head

Save time and create a super strong mount for just about anything on your bike using these bungs. Proudly made in the USA from premium American 1018 cold rolled steel for easy welding.

Bungs are counterbored to fit standard 3/8" socket head bolts so that the head of the bolt is flush inside the bung for a clean looking installation. Pair these bungs with any of our matching 3/8-16 threaded bungs and you have a professional quality mounting solution.

Bungs measure 3/4" diameter x 5/8" long. See photos for all dimensions.

Sold in packs of 4.

Steel Bungs 5/16-18 Threaded 1/2 inch Long

Save time and create a super strong mount for just about anything on your bike using these fully threaded bungs. Proudly made in the USA from premium American 1018 cold rolled steel for easy welding. These are a perfect match to our 5/16" counterbore style bungs for socket head bolts. These bungs are 3/4" diameter x 1/2" long are are tapped through with 5/16-18 threads. See photos for all dimensions. Sold in packs of 4.

Steel Bungs 3/8-16 Threaded 1/2 inch Long

Save time and create a super strong mount for just about anything on your bike using these fully threaded bungs. Proudly made in the USA from premium American 1018 cold rolled steel for easy welding. These are a perfect match to our 3/8" counterbore style bungs for socket head bolts. These bungs are 3/4" diameter x 1/2" long are are tapped through with 3/8-16 threads. See photos for all dimensions. Sold in packs of 4.

5/16-18 Threaded 1" Long Steel Bung

Steel Bungs 5/16-18 Threaded 1 inch Long by TC Bros Save time and create a super strong mount for just about anything on your bike using these fully threaded bungs. Proudly made in the USA from premium American 1018 cold rolled steel for easy welding. These are a perfect match to our 3/8" counterbore style bungs for socket head bolts. These bungs are 3/4" diameter x 1" long and are tapped through with 5/16-18 threads. See photos for all dimensions. Sold in packs of 4.

3/8-16 Threaded 1" Long Steel Bung

Steel Bungs 3/8-16 Threaded 1 inch Long by TC Bros Save time and create a super strong mount for just about anything on your bike using these fully threaded bungs. Proudly made in the USA from premium American 1018 cold rolled steel for easy welding. These are a perfect match to our 3/8" counterbore style bungs for socket head bolts. These bungs are 3/4" diameter x 1" long and are tapped through with 3/8-16 threads. See photos for all dimensions. Sold in packs of 4.

Coped Steel Bung 3/8 - 16 1/2" Inch

Save time and create a super strong mount for just about anything on your bike using these fully threaded coped bungs. Proudly made in the USA from premium American 1018 cold rolled steel for easy welding. Coped to fit perfectly to 1-1/8" diameter frame tubing but is a very easy fit to both 1" and 1-1/4" diameter as well. These bungs are 3/4" diameter x 1/2" long from flat face to the edge of cope. They are tapped through with 3/8-16 threads. See photos for all dimensions. Sold in pairs.

Coped Steel Bung 3/8 - 16 1" 

Save time and create a super strong mount for just about anything on your bike using these fully threaded coped bungs. Proudly made in the USA from premium American 1018 cold rolled steel for easy welding. Coped to fit perfectly to 1-1/8" diameter frame tubing but is a very easy fit to both 1" and 1-1/4" diameter as well. These bungs are 3/4" diameter x 1" long from flat face to the edge of cope. They are tapped through with 3/8-16 threads. See photos for all dimensions. Sold in pairs.

Sissy Bar/Fender Strut Mounting Bungs 1/2" ID

DIY Sissy Bar/ Fender Strut Mounting Bungs - 1/2" ID.

Perfect size for the TC Bros standard length DIY sissy bars and with the TC Bros fender strut kit.

• Standard Sissy Bar Kit
• Kickback Sissy Bar Kit
• Fender Strut Kit

Sissy Bar/Fender Strut Mounting Bungs 5/8" ID

DIY Sissy Bar/ Fender Strut Mounting Bungs - 5/8" ID.

Perfect size for the TC Bros Tall length DIY sissy bars and with the TC Bros fender strut kit.

• Tall Kickback Sissy Bar
• Tall DIY Sissy Bar

Steel Handlebar Internal Riser Bungs 1/2-13 Threaded 

TC Bros. bungs are perfect for building custom riser-less handlebars. Proudly made in the USA from premium American 1018 cold rolled steel for easy welding.

These bungs are designed to fit inside 1" outer diameter steel tubing with a maximum wall thickness of .120" (11 gauge). A machined chamfer allows for proper weld penetration. These bungs feature 1/2-13 internal threads for mounting to Harley Davidson® style triple trees. Your handlebar mounting bolts pass through the bottom of the triple trees and thread into these bungs for a much cleaner installation as compared to traditional clamp style risers.

The 1" diameter is a perfect match to your tubing and the 1-1/4" overall length allows for sufficient thread engagement. See photos for all dimensions.

Sold in pairs

1/4" NPT Steel Weld-In Petcock Bung

TC Bros. 1/4" NPT (National Pipe Thread) bungs are most commonly used for gas tank petcock bungs or for oil tank fittings.

Proudly made in the USA from premium American 1018 cold rolled steel for easy welding.

Note: NPT threads are tapered. They are only designed to be used with corresponding NPT threaded fittings or pipe. The tapered design allows the threads to create a leak proof seal when tightened. They are not to be used with standard bolts or hardware.

These bungs install easily by inserting into a 3/4" diameter hole and welding around the 1" diameter flange. See photos for all dimensions.

Sold in pairs.

Aluminum Vented Filler Cap with Bung for Oil or Gas Tanks

These caps are the perfect finishing touch when building a custom oil or gas tank for your chopper. Easy to weld 1018 mild steel bung is 1-3/4 inch outer diameter and features a 1 5/16" x 12 thread and comes with CNC machined billet aluminum cap (vented).

- 'Knurled' For Extra Grip

- Leak Free O-Ring Seal

- Made In USA

Aluminum Unvented Filler Cap with Bung for Oil or Gas Tanks

These TC Bros. caps are the perfect finishing touch when building a custom oil or gas tank for your chopper. Easy to weld 1018 mild steel bung is 1-3/4 inch outer diameter and features 1 5/16" x 12 threads. Kit also includes CNC machined billet aluminum cap (unvented).

- 'Knurled' For Extra Grip

- Leak Free O-Ring Seal

- 100% Made In USA

Universal Bobber/Chopper Fender Strut Kit

Kit includes:

(4) CNC Machined steel bungs with 3/8-16 threaded hole

(2) 12" long 1/2" diameter steel rods.

Everything is made in USA from 1018 mild steel for easy welding.

For some extra style, use the TC Bros Mounting Bung Kit

5/16" Counterbore Bungs

These bungs are sold as a pair and can be purchased as mild or stainless steel and allow for the head of an allen bolt to sit flush inside. 

Outside measurements are as follows:

• 3/4" diameter
• .625" long

Gas Tank Sight Glass Kit (with steel weld in bung)

Want a sight gauge on your gas or oil tank but don't want bulky lines and fittings hanging off the side. TC Bros. has the solution! Crystal clear glass viewing lens sealed tight into a CNC machined brass housing. Also included is a forged 3/4" NPT mild steel bung for easy welding.

Weld-On Rear Ribbed Fender Mount

universal fit, weld-on ribbed fender mounting bracket is constructed from a single piece of 1/4" thick American made mild steel for easy welding.

Vintage style curves and contours provide eye appeal while the 5/16" diameter mounting holes make for a simple installation. 1018Mild Steel CNC Machined bungs are provided to weld directly to your ribbed fender.

This fender bracket is most commonly used to mount ribbed fenders to a frame cross member. The straight portion of the bracket is easily trimmed to length to fit your application.

Combine this bracket with a set of our universal fender struts (SKU #104-0008) and you have a fender mounting system that will withstand the most demanding rigid frame applications. Sold individually.

Proudly made in the USA.