Engineering Reference, Simplified

Designparams was founded to solve a common friction point in the mechanical design process: the hunt for standard hardware dimensions.

As CAD designers and engineers, we found ourselves constantly digging through fragmented manufacturer PDFs and buried ISO/ASME tables just to find a head diameter or a pilot clearance. Designparams serves as a centralized, high-performance library of technical dimensions specifically curated for 3D modeling and industrial design workflows.

Our Mission

Our goal is to provide the engineering community with a clean, ad-supported, and free-to-use reference that prioritizes speed and accuracy. Every dimension listed on this site is cross-referenced with international standards such as:

• ISO (International Organization for Standardization)
• DIN (Deutsches Institut für Normung)
• ASME (American Society of Mechanical Engineers)

Expert Curation

Unlike generic data scrapers, the content on Designparams is curated by experienced mechanical designers. We don't just provide tables; we provide contextual design tips—such as galvanic corrosion warnings or alignment best practices—to help you make better hardware selections.

Accuracy Disclaimer

While we strive for 100% accuracy based on the latest standards, this site is intended for reference during the preliminary design phase. For flight-critical, medical, or life-safety applications, always verify dimensions against the official and latest version of the specific DIN, ISO, or ASME publication.

For inquiries regarding data accuracy or to request new part categories, please visit our Contact Page.