Product OverviewBrass mold-in inserts represent the pinnacle of threaded fastener technology for injection molded plastic components. These precision-engineered inserts feature a coarse diamond knurl exterior surface that creates an unbreakable mechanical bond with the surrounding plastic material during the molding process. Unlike post-molding installation methods such as heat insertion or ultrasonic welding, mold-in inserts are positioned directly in the injection mold cavity, allowing the molten plastic to flow around and permanently encapsulate the knurled exterior. This results in superior pull-out resistance, exceptional torque strength, and eliminates the risk of insert displacement or rotation. The internal threads are precision-machined to exact specifications, providing reliable engagement with standard fasteners while the brass construction offers excellent corrosion resistance, electrical conductivity, and thermal stability across a wide temperature range.�� Through Hole InsertsComplete thread engagement from both sides with coarse diamond knurl exterior for maximum retention in plastic materials. Ideal for applications requiring access from both ends.�� Blind Hole InsertsClosed bottom design with internal threads and diamond knurl exterior. Perfect for applications where one-sided access is sufficient and bottom sealing is required.
