Heat-Set Threaded Insert Assortment Box

Keep a variety of metric and standard heat-set threaded inserts on hand with this handy assortment box! Heat-Set Threaded Inserts are a great option for 3D printed parts or making repairs to any thermoplastic part. They provide a much stronger connection than simply threading screws into the plastic. Brass will also last much longer than plastic threads and is less likely to cross thread which makes them ideal for parts that are assembled and disassembled often. These inserts can be easily and quickly installed by heating them with a standard soldering iron on a low-heat setting and using the soldering iron's tip to press the insert into place.  The melted plastic will flow around the knurls and ridges on the insert as it is pressed in and solidify when cool, locking it in place.  Includes the following heat-set insert sizes (287 inserts total) in a small transparent plastic compartment box:  Metric M2.5x0.45 Short (x40) Long (x40) M3x0.5 Short (x30) Long (x30) M4x0.7 (x20) M5x0.