M3 Knurled Thread Brass Insert Nuts are made of brass, knurled for a good anti-slip effect.They used by hot melt, hot pressure, and injection molding embedded processing technology, play a role in connection, locking, tightening.
Brass Knurled M4 threaded insert nuts made of brass hpb59-1 The main use is: injection molding, heating into the plastic parts or direct mold injection.