Hexagonal inserts, types NFPA™ (aluminum inserts) and NFPC™ (stainless steel inserts) provide strong, reusable threads with no heat or ultrasonics required. The hexagonal "barbed" configuration ensures high torque-out and pullout values.
Thru-threaded, types PPA™ (aluminum inserts) and PPB™ (brass inserts) are press-fit inserts with strong, reusable threads. No heat or ultrasonics are required. The slotted insert compresses allowing easy access into the mounting hole.
Flange-head, types PFLA™ (aluminum inserts) and PFLB™ (brass inserts) are press-fit inserts with strong, reusable threads. No heat or ultrasonics are required. The flange-head eliminates direct contact of plastic with mating parts. The slotted insert compresses allowing access into the mounting hole.
Straight knurl, PKA™ (aluminum inserts) and PKB™ (brass inserts) are press-fit inserts with strong, reusable threads. No heat or ultrasonics are required. The straight knurling at the top end of the insert offers higher torsional resistance. The slotted insert compresses allowing access into the mounting hole.
This is the easiest and least costly plastic insertion method that requires a basic press for execution. Essentially, inserts are simply pressed into the thermoset plastic mold; this approach results in a weaker bond and overall strength, but generally is a sturdy alternative that will work and save on costs. Although they may not perform as well as the aforementioned types, cold pressed-in inserts are a highly economical alternative because they are easy to install and typically do not require special auxiliary equipment.
