Products List
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10-32 threaded bung
TB1032$3.0010-32 Weld-In Threaded Bungs – 1018 Mild Steel These 10-32 weld-in threaded bungs are precision-machined from solid 1/2" OD 1018 cold rolled mild steel round bar and are available in two length options to suit a wide range of fabrication needs. The... -
1/4" x 20 Threaded bung
TB14C$3.00 - $3.251/4"-20 Weld-In Threaded Bungs – 1018 Mild Steel These versatile 1/4"-20 weld-in threaded bungs are precision machined from 1018 cold rolled mild steel round stock and are ideal for a wide range of custom fabrication and mounting applications. Also... -
5/16" x 24 Threaded bungs
TB516F$3.005/16"-24 Weld-In Threaded Bungs – 1018 Mild Steel These 5/16"-24 weld-in threaded bungs are machined from solid 1018 cold rolled mild steel round stock for excellent strength and clean, consistent welds. Designed for fabrication and custom mounting... -
5/16" x 18 Threaded bungs
TB516C$3.00 - $3.255/16"-18 Weld-In Threaded Bungs – 1018 Mild Steel These weld-in bungs are machined from solid 1018 cold rolled mild steel round stock, then drilled and threaded to 5/16"-18 SAE coarse thread. Commonly used as weld nuts or threaded standoffs, these... -
3/8" x 24 Threaded Bungs
TB38F$3.003/8"-24 Weld-In Threaded Bungs – 1018 Mild Steel These 3/8"-24 weld-in threaded bungs are precision-machined from solid 1018 cold rolled mild steel round stock, offering exceptional strength, durability, and weldability for your fabrication... -
3/8" x 16 Threaded Bungs
TB38C$3.00 - $4.003/8"-16 Weld-In Threaded Bungs – 1018 Cold Rolled Mild Steel These 3/8"-16 weld-in threaded bungs are machined from solid 1018 cold rolled mild steel round stock and precision-tapped for SAE coarse thread. Also known as weld nuts or threaded... -
7/16" x 14 Threaded Bungs
TB716$5.00 - $5.657/16"-14 Weld-In Threaded Bungs – 1018 Mild Steel These 7/16"-14 weld-in threaded bungs are machined from durable 1018 cold rolled mild steel round bar with a 7/8" outer diameter, offering a strong weld footprint for high-stress fabrication work... -
1/2 x 13 Threaded Bungs
tb12c$5.00 - $5.751/2"-13 Weld-In Threaded Bungs – 1018 Mild Steel These heavy-duty 1/2"-13 weld-in threaded bungs are machined from solid 1018 cold rolled mild steel with a 7/8" outer diameter for added weld surface and durability. Perfect for structural and... -
12 Piece Threaded Bung Assortment, Metric
12TBM$34.00These weld bungs are made of 1018 cold rolled mild steel round stock, drilled and threaded to your specified metric thread. Bungs come in a few different lengths and diameter options depending on thread size. Great for all your fabrication mounting... -
12 Piece Threaded Bung Assortment
12TBK$34.00These weld bungs are made of solid round stock and drilled and threaded to your specified SAE thread. Bungs come in a few different lengths and diameter options depending on thread size. The shorter of the two sizes is tapped through and the longer ones... -
30 Piece Threaded Bung Assortment, Metric
30TBM$81.00These weld bungs are made of solid round stock and drilled and threaded to your specified Metric thread. Bungs come in a few different lengths and diameter options depending on thread size. Great for all your fabrication mounting needs. Not sure what... -
30 Piece Threaded Bung Assortment
30TBK$81.00These weld bungs are made of solid round stock and drilled and threaded to your specified SAE thread. Bungs come in a few different lengths and diameter options depending on thread size. The shorter of the two sizes is tapped through and the longer ones... -
1/4" X 20 Stainless Threaded Bung
TB14CSS$4.00 - $4.251/4"-20 Stainless Steel Weld-In Threaded Bungs These 1/4"-20 weld-in threaded bungs are precision-machined from 5/8" solid stainless steel bar stock, offering excellent strength and corrosion resistance for your custom fabrication projects. Tapped for... -
5/16" x 18 Stainless Threaded Bung
TB516CSS$4.00 - $4.255/16"-18 Stainless Steel Weld-In Threaded Bungs These 5/16"-18 weld-in threaded bungs are machined from solid stainless steel round stock and are built to handle demanding fabrication environments. Designed to accept standard SAE 5/16"-18 thread,... -
Universal Mount Set
UMK$14.00Universal Mount Kit Thses universal weld on mounts can be used to mount just about anything we commony use them to mount fenders oil tanks and exhaust systems. Made from 3/4" diameter cold rolled mild steel. Each kit includes: 2 counterbored bungs 2... -
3/8" x 16 Stainless Threaded Bung
TB38CSS$4.00 - $4.253/8"-16 Stainless Steel Weld-In Threaded Bungs These 3/8"-16 weld-in bungs are precision-machined from solid stainless steel round bar, offering excellent strength and corrosion resistance for demanding fabrication jobs. Tapped to standard SAE 3/8"-16... -
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... -
Steel Blind Threaded Tank Bungs
BTB$3.25These are steel weld in bungs that are tapped at one end blind (not all the way through). These are commonly welded into fluid containers to provide a threaded mount. They are available in three different thread sizes. Metric Sizes also... -
Aluminum Blind Threaded Tank Bungs
btbal$3.75These blind tapped tank bungs are made from 6061-T6 aluminum. They are commonly used to weld into fluid containers to provide a threaded, leak proof mount. They come in two different thread pitches. The larger diameter allows more room... -
Stainless Steel Blind Threaded Tank Bungs
btbss$3.75These weld in Stainless steel bungs are commonly welded into fluid containers to provide a threaded mount. Offered in three different thread pitches. Thread Size Outer Diameter Overall Length 1/4" x 20 5/8" 1.25" 5/16" x 18 3/4" 1.25"...
Threaded Weld-On Bungs – Precision CNC-Machined Steel, Stainless, & Aluminum Parts
Bung King’s threaded weld-on bungs are ideal for custom fabricators seeking high-quality, precision-fit components for universal mounting applications. CNC-machined in the USA from durable materials like steel, stainless steel, and aluminum, these bungs are designed for easy welding and a secure connection in a wide range of projects.
Available in fine thread and coarse thread sizes, these bungs are perfect for custom frames, brackets, subframes, and other fabrications that require strong, reliable threaded connections. The aluminum option provides a lightweight alternative for builders seeking to reduce overall weight without compromising strength.
Key Features:
Available in fine thread and coarse thread sizes
Made from steel, stainless steel, and aluminum
CNC-machined for precise thread quality and fitment
Ideal for universal mounting applications such as frames and brackets
Weld-ready
Proudly made in the USA for superior consistency and performance
Whether you're building a custom motorcycle, automotive project, or general fabrication, Bung King’s threaded weld-on bungs offer the precision and strength needed for your mounting and structural applications.
