Uploaded November 2025 | Updated September 2026, 2 weeks ago
In this episode of Ask an Engineer, we answer a common design question:
“How much extra clearance should you add to fastener holes when powdercoating?”
Powdercoat adds approximately 0.003” of thickness to your metal — including cutouts. That means you should add 0.006” of additional clearance to account for both sides of the part.
Whether you’re designing custom enclosures, brackets, or CNC-machined components, this small adjustment can help prevent last-minute assembly headaches.
Learn more about powdercoat and custom manufacturing at Protocase on our website: protocase.com
#AskAnEngineer #Protocase #Powdercoating #EngineeringTips #DesignTips #Manufacturing #MetalFabrication #HardwareDesign #EngineeringShorts
In this episode of Ask an Engineer, we answer a common design question:
“How much extra clearance should you add to fastener holes when powdercoating?”
Powdercoat adds approximately 0.003” of thickness to your metal — including cutouts. That means you should add 0.006” of additional clearance to account for both sides of the part.
Whether you’re designing custom enclosures, brackets, or CNC-machined components, this small adjustment can help prevent last-minute assembly headaches.
Learn more about powdercoat and custom manufacturing at Protocase on our website: protocase.com
#AskAnEngineer #Protocase #Powdercoating #EngineeringTips #DesignTips #Manufacturing #MetalFabrication #HardwareDesign #EngineeringShorts
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