Products List
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1/4" Counterbore Bungs
CBB14$3.00These 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... -
5/16" Counterbore bung
CBB516$3.00 - $3.25These 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... -
3/8" Counterbore Bung
CBB38$3.00 - $3.25These 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... -
7/16" Counterbore Bung
CBB716$4.00 - $4.50These 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... -
1/2" Counterbore Bungs
CBB12$4.95 - $5.35These 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... -
16 Piece Counterbore Bung Assortment
16CBBK$51.75These weld in counterbored bungs are machined to accept socket head cap screws AKA allen bolts used for a super clean look. Great for all your fabrication mounting needs. Not sure what size bungs you will need? Purchase an assortment and we'll have... -
40 Piece Counterbored Bung Assortment
40CBBK$121.50These weld in counterbored bungs are machined to accept socket head cap screws AKA allen bolts used for a super clean look. Great for all your fabrication mounting needs. Not sure what size bungs you will need? Purchase an assortment and we'll have you... -
M10 Counterbore Steel Bung
CBM10$3.00 - $3.25Our Metric Counterbore Weld-In Bungs are precision-machined from 1018 cold rolled mild steel, designed for clean and professional fabrication work. Each bung is counterbored to accept an M10 socket head cap screw (Allen bolt), allowing the bolt head to... -
M8 Counterbore Steel Bung
CBM8$3.00 - $3.25Our Metric Counterbore Weld-In Bungs are precision-machined from 1018 cold rolled mild steel, designed for clean and professional fabrication work. Each bung is counterbored to accept an M8 socket head cap screw (Allen bolt), allowing the bolt head to... -
M6 Counterbore Steel Bung
CBM6$3.00 - $3.25Our Metric Counterbore Weld-In Bungs are precision-machined from 1018 cold rolled mild steel, designed for clean and professional fabrication work. Each bung is counterbored to accept an M6 socket head cap screw (Allen bolt), allowing the bolt head to... -
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... -
Stainless 1/4" Counterbore Bungs
CB14SS$4.00 - $4.25Upgrade your fabrication projects with our Stainless Steel Weld-On Counterbored Bungs, precision-machined for strength, durability, and a professional finish. Each bung is crafted from solid stainless steel and designed to accept 1/4" socket head cap... -
Stainless 5/16" Counterbore Bungs
CB516SS$4.00 - $4.25Our Stainless Steel Weld-On Counterbored Bungs are precision-machined for clean, professional fabrication projects. Designed to accept 5/16" socket head cap screws (Allen bolts), these bungs provide a flush, seamless look while maintaining strength and... -
Stainless 3/8" Counterbore Bung
cb38$4.00 - $4.25Upgrade your fabrication projects with our Stainless Steel Weld-On Counterbored Bungs, precision-machined for strength, durability, and a professional finish. Each bung is crafted from solid stainless steel and designed to accept 3/8" socket head cap...
Counterbored Weld-On Bungs – Clean, Flush-Mount Fabrication Parts
Bung King's counterbored weld-on bungs are engineered for clean, flush-mounted hardware installation in custom fabrication projects. Each bung is CNC-machined in-house in the USA from high-quality steel, stainless steel, or aluminum, providing unmatched strength, precision, and consistency.
These bungs feature a recessed counterbore to allow bolts or hardware to sit flush with the bung surface, making them ideal for frame construction, brackets, custom subframes, and other universal mounting applications. With multiple thread sizes and material options available, Bung King counterbored bungs are trusted by professional builders and fabricators who demand clean aesthetics and rugged performance.
Key Features:
Counterbored design for flush-mount hardware
Available in steel or stainless steel
CNC-machined in the USA for precise fit and finish
Weld-ready and ideal for universal mounting and structural use
Perfect for motorcycle, automotive, and general fabrication projects
When strength, style, and precision matter, Bung King’s counterbored bungs deliver the professional-grade results your build deserves.
