Add lightweight, corrosion-resistant threads to sheet metal. These aluminum press-fit nuts are one-third the weight of steel press-fit nuts and better withstand wet environments. However, they’re only about half as strong. Use press-fit nuts to add permanent threads to thin metal surfaces, like weld nuts, but without the setup and mess. Also known as clinch-style captive nuts, press them into a drilled or punched hole with an arbor press or similar pressure tool. The pressure forms your sheet metal into the knurls of the nut, making the nut inseparable from the sheet. Installation requires access to both sides of the panel.

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