Uploaded March 2026 | Updated September 2026, 1 week ago
In this video, Chris quickly breaks down the 60% rule for flush mounting, a critical Design for Manufacturability (DFM) principle for mechanical engineers and designers, when working with thinner metals/materials.
What you'll learn:
- What the 60% rule is and why it matters
- How to avoid the "knife-edge" effect in thin materials
- When it's okay to ignore the rule for advanced assemblies
- How to maintain structural integrity while minimizing material thickness
Have a quote ready? Check out our instant online price quoting tool: protocase.com/price/protocase-instant-quoter
In this video, Chris quickly breaks down the 60% rule for flush mounting, a critical Design for Manufacturability (DFM) principle for mechanical engineers and designers, when working with thinner metals/materials.
What you'll learn:
- What the 60% rule is and why it matters
- How to avoid the "knife-edge" effect in thin materials
- When it's okay to ignore the rule for advanced assemblies
- How to maintain structural integrity while minimizing material thickness
Have a quote ready? Check out our instant online price quoting tool: protocase.com/price/protocase-instant-quoter










