E-Z Press Threaded Inserts for Plastic E-Z LOK Threaded Inserts for plastic offer superior holding power. The brass thread inserts and stainless steel thread inserts are designed for post-molding installation for putting machine threads in either thermoset plastics, thermoplastics, or 3D printed parts. A slotted design allows for cold installation of these metal thread inserts with no heating required, eliminating the need to chase threads after installation. Plus, it reduces the costs of moldings and reduces rejected waste. Available in 3 styles: flush threaded inserts, flanged threaded inserts, and reverse slot threaded inserts. All three types press into place for fast, easy installation. Features Inserts install cold - no heating required Eliminate the need to chase threads after molding Reduce cost and waste Install properly without a precise hole depth