Thread Inserts FEATURES: Install with standard tools. Self locking. Carbon steel designs. Registered to ISO 9001:2000. E-Z LOK thread inserts are an easy way to replace or prevent worn threads. The inserts install with standard tools…no special drills or taps needed. Simply drill the hole with a standard drill, tap the hole with a standard tap, and then turn in the EZ-LOK with a screwdriver, bolt/nut, or if desired, an EZ-LOK drive tool. A pre-applied anaerobic adhesive on the external threads...