Made from brass, these inserts are electrically conductive, nonmagnetic, and have good corrosion resistance. Press them into a drilled hole, then install a screw to expand the insert and drive the knurls into the surrounding plastic to keep it secure.

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The flange keeps these inserts from pulling through a hole. Install on the underside of the material by pressing them into a drilled hole. Install a screw to expand the insert and drive the knurls into the surrounding plastic to keep it from pulling out. Made from brass, they’re nonmagnetic, corrosion resistant, and electrically conductive. Installed length includes the flange.

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Fins cut into the surrounding material for a more secure hold than knurled inserts. Press or hammer them into a drilled hole, then install a screw. The screw expands the insert and drives the fins into the surrounding plastic to keep it secure. Made from brass, they’re nonmagnetic, corrosion resistant, and electrically conductive.

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The barbed sides keep these inserts in place before a screw is installed. Made of brass, they're corrosion resistant, electrically conductive, and nonmagnetic.

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Install these inserts into plastic parts to create a secure base for fasteners. Also known as Chevron and headed inserts, they are often used to strengthen mounting holes on brittle plastics, such as on 3D printed parts. Unlike plastic threads, which wear down with repeated use, these threads hold their shape over a long life. Press inserts into straight holes that have been drilled, printed, or molded into plastic parts, then heat them with a soldering tip to melt the surrounding plastic. As the plastic cools, it fuses to the sharp, diagonal ridges around the inserts, which withstand torque and prevent the inserts from being pulled out. The interior is fully threaded, so you can access the threads from both sides of a through-hole.

Flanged inserts have a wider end than standard inserts, which gives them a larger load-bearing surface and makes them harder to pull out. The flange also gives you a larger contact area for soldering. When threading into the flanged side, these inserts prevent over-tightening, which can cause brittle plastic to crack.

Made with lead, brass inserts are stronger than aluminum and other brass alloys but not as strong as stainless steel inserts. They have good corrosion resistance.

Aluminum inserts are 70% lighter than brass and stainless steel inserts, have good corrosion resistance, and are lead-free. Since they’re lead-free, they can be safely recycled.

Stainless steel inserts are stronger than brass and aluminum inserts, have excellent corrosion resistance, and are lead-free. Since they’re lead-free, they can be safely recycled.

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Also known as Trisert inserts, these cut threads into plastic and have better holding power than press-fit inserts. Flutes channel loose chips up and out to keep threads clean during installation. Made from brass, they’re corrosion resistant, electrically conductive, and nonmagnetic. Install in a drilled hole using a required installation tool.

For technical drawings and 3-D models, click on a part number.