Bungs

3/8"-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...

5/16"-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...

1/4"-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...

Stepped Blind Tank Bungs – 1018 Mild Steel These stepped blind threaded bungs—also known as top hat bungs—are ideal for welding into gas tanks, oil tanks, or any steel fluid container. Precision-machined from 1018 cold rolled mild...

Flanged / Stepped Threaded Thru Bungs – Mild Steel These flanged weld-on bungs, also known as top-hat or stepped bungs, are precision-machined from solid round 1018 mild steel stock and threaded through to your specified SAE thread. Designed with a...

These metric threaded weld in bungs are made of 1018 cold rolled mild steel round stock, drilled and tapped to your specified metric thread. Bungs come in a few different length, and diameter options depending on thread size. The 15mm lengths are tapped...

1/2"-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...

These metric threaded weld in bungs are made of 1018 cold rolled mild steel round stock, drilled and tapped to your specified metric thread. Bungs come in a few different lengths, and diameter options depending on thread size. The 15mm lengths are tapped...

Aluminum 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...

 3/8"-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...

These metric threaded weld in bungs are made of solid round stock and drilled and tapped to your specified metric thread. Bungs come in two different lengths, and diameter options depending on thread size. The 15mm lengths are tapped through and the...

1018 Mild Steel NPT Weld-In Bungs – Multiple Sizes Available These NPT weld-in bungs are precision-machined from solid 1018 cold rolled mild steel bar stock, then drilled and tapped to National Pipe Thread (NPT) standards for secure, leak-free...

These weld on counterbored bungs are machined to accept socket head cap screws AKA allen bolts used for a super clean look.  Machined from 3/4" dia solid mild steel round bar and drilled for use with a 3/8 dia bolt, with a counterbore in the top so...

This is a vented version of our common Filler Cap and Bung. These caps use the same standard bung we have used for years. They have a small .040" hole for venting with a replaceable brass vent fitting installed on the inside to reduce liquid seepage...

6061 Aluminum NPT Weld-In Bungs – Lightweight & Corrosion-Resistant These NPT weld-in bungs are precision-machined from solid 6061-T6 aluminum bar stock and tapped to standard National Pipe Thread (NPT) specifications. Commonly used for fluid...

These weld on counterbored bungs are machined to accept socket head cap screws AKA allen bolts used for a super clean look. Machined from solid 3/4" dia 1018 mild steel.   BOLT SIZE LENGTH DIAMETER PRICE   5/16" .75" 3/4" $3.00 5/16" 1...

1/4"-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...

Threaded Bullet Bungs – Blind, Weld-On, 1018 Mild Steel These weld-on threaded bullet bungs are made from solid 1018 cold-rolled mild steel and feature a rounded tip with a full radius for a clean, finished look. Designed as blind bungs, the hole...

10-32 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...

5/16"-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...

Filler Cap and Bung Filler Cap and bung these are most commonly used for oil tanks or any other fluid container such as an overflow tank that does not need to be vented. We make a vented version of these filler necks as well. 1.250 x 12 threaded bung...

Stainless 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...

1018 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...

These metric counterbore weld in bungs are made of 1018 cold rolled mild steel round stock.  They are machined to accept socket head cap screws, AKA allen bolts, flush with the top surface of the bung.  This allows welding up to the where the...

These metric counterbore weld in bungs are made of 1018 cold rolled mild steel round stock.  They are machined to accept socket head cap screws, AKA allen bolts, flush with the top surface of the bung.  This allows welding up to the where the...

These weld on counterbored bungs are machined to accept socket head cap screws, AKA allen bolts, used for a super clean look. Machined out of solid 1018 mild steel.   BOLT SIZE LENGTH DIAMETER PRICE   1/2" 1.0" 1" $4.95 1/2" 1.5" 1" $5...

Stainless Steel Stepped Blind Tank Bungs – Top Hat Style for Fluid Containers These stainless steel stepped blind bungs—also known as top hat bungs—are perfect for fabricating or modifying gas tanks, oil tanks, or any stainless fluid...

Stepped 1/2"-13 Weld-In Bung for 1" & 1.25" Tubing – Mild Steel These large weld-in stepped bungs—also known as top hat bungs—are precision-machined for 1/2"-13 coarse thread bolts, the same thread size commonly used for handlebar...

These weld on threaded bullet bungs are made of solid cold rolled steel, drilled and tapped to your thread choice. These are blind bungs meaning the hole does not go all the way through. One end of the weld on bung is rounded with a full radius, and at...

These weld on counterbored bungs are machined to accept socket head cap screws AKA allen bolts used for a super clean look.  Machined from 5/8" dia solid mild steel round bar and drilled for use with a 1/4" dia bolt, with a counterbre in the top so...

These weld on threaded bullet bungs are made of solid, cold rolled steel, drilled and tapped to your thread choice. These are blind bungs meaning, the hole does not go all the way through. At one end of the weld-on bung is rounded with a full radius and...

These are our Coped Threaded Bungs.  One end is coped or fish mouthed to fit over a piece of tubing or solid bar. This leaves you with a great fit over round stock and a large area for a strong weld seam for an extra strong joint. We commonly use...

? Stainless Steel Bullet Bungs – 1" Blind Weld-On, 304 Stainless These compact weld-on bullet bungs are precision machined from solid 304 stainless steel, offering excellent corrosion resistance and strength. Designed with a blind tapped hole (does...

These metric counterbore weld in bungs are made of 1018 cold rolled mild steel round stock.  They are machined to accept socket head cap screws, AKA allen bolts, flush with the top surface of the bung.  This allows welding up to the where the...

These are stainless heim joints/ rod ends are  used commonly in the bike industry for shifter rods. The common thread  used in most Factory HD and aftermarket shifter rods is 5/16" x 24. Also available in 1/4 x 28. They can also be used when...

Weld In Riser Spuds These can be used by anyone making there own set of t-bars or similar custom handlebars that don't use a riser clamp. They are welded on the inside of a piece of .120" wall tubing and provide the correct 1/2" dia bolt size for...

These are our Coped Threaded Bungs. One end is coped or fish mouthed to fit over a piece of tubing or solid bar. This leaves you with a great fit over round stock and a large area for a strong weld seam. We commonly use them anytime we need a threaded...

Universal 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...

These 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...

These weld on counterbored bungs are machined to accept socket head cap screws AKA allen bolts used for a super clean look.  Machined from 5/8" dia solid mild steel round bar and drilled for use with a 1/4" dia bolt, with a counterbre in the top so...