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1/2" x 13 Stainless Stepped Handlebar Bung
SHBBSS$7.50 - $9.00These are one of the larger versions of our stepped bungs. They are drilled and tapped through for a 1/2" x 13 bolt, the same thread size used in most handlebar mounting. The stepped down section is 1/4" smaller then the larger flange dia so it... -
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. Lightweight yet durable, these aluminum... -
1/2" x 13 Stepped Handlebar Bung
SHBB12c$7.50 - $8.50These are two of the larger versions of our stepped bungs. They are drilled and tapped through for a 1/2" x 13 bolt, the same size used in most handlebar mounting. You can choose between a stepped down section that is 3/4" so it will slip into 1" x... -
Wide Flange 1/2 x 20 Threaded Stepped Handlebar Bung
wfshbb12f$9.75These are one of our larger versions of our weld in stepped or tophat style bungs. These ones are drilled and tapped through for a 1/2" x 20 ( fine thread) bolt the same size used in most handlebar mounting. The stepped down section is so it will slip... -
Wide Flange 1/2 x 13 Threaded Stepped Handlebar bung
WFSHBB12C$9.75These are one of our larger versions of our weld in stepped or tophat style bungs. These ones are drilled and tapped through for a 1/2" x 13 bolt the same size used in most handlebar mounting. The stepped down section is so it will slip into 1" or 1 1/4"... -
Stepped NPT bungs
SNPT$4.25 - $8.001018 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... -
Stepped Blind tank bungs
SBTB$4.25Stepped Blind Tank Bungs These stepped steel blind threaded bungs (some call them tophat bungs) are great for use in gas tanks, oil tanks or any other steel fluid conatiner. They have a step machined in them to keep all of them mounted at the same... -
Stainless Stepped Blind Tank Bungs
SBTB-SS$4.95Stainless Stepped Blind Tank Bungs These stepped, stainless steel, blind threaded bungs (some call them top hat bungs) are great for use in gas tanks, oil tanks or any other stainless steel fluid container. They have a step machined in them to keep... -
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 specified NPT thread size. Designed for custom... -
Stepped / Flanged Threaded Through Bungs
STB$4.25These weld on bungs are made of solid round stock and drilled and threaded to your specified SAE thread. Bungs come in a few differant length, and diameters to fit your custom fabrication needs. Commony used for sheetmetal or structural mounting... -
Aluminum Stepped Blind Tank Bungs
ASBTB$4.50These aluminum blind threaded bungs are great for use in gas tanks, oil tanks, automotive catch tanks and resivours or any other aluminum fluid conatiner. They have a step machined in them to keep all of them mounted at the same standoff height for quick...
Stepped & Flanged Weld-On Bungs – Precision Fit, USA-Made Fabrication Parts
Bung King's stepped and flanged bungs are premium weld-on components designed for fabricators who need precise alignment, clean surface seating, and added structural integrity. Made from high-quality steel or stainless steel, each bung is CNC-machined in-house in the USA for exact fitment and weld-ready performance.
These stepped bungs feature a shoulder or flange that allows for controlled depth and flush mounting—ideal for fuel tanks, oil tanks, and pressurized systems where a sealed and level connection is critical. With multiple thread types and sizes available, these bungs are trusted by custom motorcycle, automotive, and industrial builders across the country.
Key Features:
Stepped and flanged for precise positioning and sealing
Available in steel and stainless steel
Thread sizes include NPT, fine thread, and custom options
Ideal for tanks, tubing, and pressure-safe connections
CNC-machined in the USA for consistency and accuracy
Weld-ready and corrosion-resistant options available
Whether you're building a high-performance tank or need a flush-mount threaded connection, Bung King’s stepped and flanged bungs deliver durability and professional results every time.
