4 products
Mild Steel Weld Flanges
Mild Steel Weld Flanges for Tube Chassis Frame Connections
Pro-Werks Mild Steel Flanges serve a distinct purpose in chassis fabrication — they create bolt-together connection points between sections of a tubular frame rail, or provide a clean mounting flange for removable chassis components. This is a fundamentally different function from a tab or bracket, and the right tool when you need a demountable joint.
Primary Applications for Weld Flanges
Flanges are most commonly used when a chassis section needs to be removable or when two frame rails must be joined with a bolted connection rather than a permanent weld. Common uses include:
- Bolt-together frame rail connections — front clip to main chassis, removable rear sections
- Mounting flanges for bolt-on nerf bars, bumpers, and body panels
- Removable crossmember attachment points
- Any application where a section of the chassis must be disassembled for transport, inspection, or repair
Material & Weldability
Mild steel flanges can be successfully welded to both mild steel and chromoly using the proper filler rod. For applications requiring maximum strength at the flange joint, consider fabricating from chromoly plate. Always consider the load path through the flange when designing the bolted connection — bolt size, pattern, and clamping force all affect joint integrity.
Quantity Discounts Available
Available in pack quantities as listed, or in conveniently packaged bags of 20 for volume users. Increase quantity in cart to earn extra savings — call or email The Chassis Shop for special requests.
Note: Welding should always be performed by a qualified welder. Proudly Made in the USA.









