E-Z Lok expands Finserts product line  

The threaded brass inserts can be placed directly in the mold or added before assembly.
March 6, 2026

Finserts E-Z Lok’s E-Z Fin threaded brass inserts for plastics — also known as Finserts — can be placed into a plastic part before assembly or positioned in the mold with plastic injected around it. Each Finsert is designed with one, two or three outer-diameter fins that distribute stress over a greater surface area to minimize the possibility of cracking and protect against thread erosion. They are suited for both small-scale projects and large industrial uses.

What’s new? An expanded lineup of Finserts, available in a variety of sizes. 

Benefits Easy installation and optimal fit, to minimize issues such as splintering and damage, and maximize durability. Finserts are engineered to distribute load evenly, minimizing stress on the base material and extending the lifespan of the component.

E-Z Lok, Gardena, Calif., 310-323-5613, www.ezlok.com 

About the Author

Karen Hanna

Senior Staff Reporter

Senior Staff Reporter Karen Hanna covers injection molding, molds and tooling, processors, workforce and other topics, and writes features including In Other Words and Problem Solved for Plastics Machinery & Manufacturing, Plastics Recycling and The Journal of Blow Molding. She has more than 15 years of experience in daily and magazine journalism.