Stop moisture, road debris, and slag from ruining your threads. Our Mini Blind Steel Bungs feature a closed-bottom design to completely seal off frame tubes, fuel tanks, oil tanks, and fender mounts while maintaining a super tight look.
Machined with a slimmed-down outer body diameter, these bungs allow you to drop straight into a 12mm drilled hole without needing expensive large drill bits, oversized step drills or exessive fabrication time. The flat-top profile allows them to be welded perfectly flush for a clean, seamless finish on any custom build.
- Material: Easy-to-weld Mild Steel (coated with light protective anti-rust film)
- Thread Size: 5/16" UNC (18 TPI)
- Thread Depth: 9mm
- Outer Diameter (OD): 11.95mm (Fits standard 12mm drilled holes)
- Overall Length: 10.85mm
- Design: Closed-bottom (blind) to keep moisture and contaminants out of customer frames and tanks
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Quantity: Sold as pack of 4
Applications - Custom fuel & oil tank mounting tabs
- Fender & Sissy bar mounts
- Frame mounting tabs (exhaust) & wiring mounts
- Low-clearance custom motorcycle & fabrication projects