1/2" x 13 Stepped Handlebar Bung

Stepped Weld-In Bungs – Mild Steel – 1/2"-13 Thread for 1" & 1-1/4" Tubing

These are two of the largest versions of our stepped weld-in bungs, designed to simplify fabrication and ensure a secure, clean fit in 1" or 1-1/4" x .120 wall tubing. Machined from solid 1018 cold rolled mild steel, each bung is drilled and tapped through for 1/2"-13 thread—commonly used in handlebar mounts and other heavy-duty applications.

Choose from two fitment options:

1" OD stepped down to 0.755" – ideal for slipping into 1" x .120 wall tube

1-1/4" OD stepped down to 1" – designed for 1-1/4" x .120 wall tubing

The stepped flange ensures consistent standoff height and alignment, while the larger diameter provides ample weld surface for strength. These bungs are great for building custom T-bars, structural brackets, and other high-stress welding or mounting applications.

Made from 1018 Cold Rolled Mild Steel

Tapped 1/2"-13 SAE

1.25" overall length

Choose from 1" or 1-1/4" flange OD

Sold individually