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E-Z LOK™ Threaded Insert for Metal - Standard Wall - Carbon Steel - 3/8-16 x 9/16-12

SKU: 329-6

E-Z LOK™ Threaded Insert for Metal - Standard Wall - Carbon Steel - 3/8-16 x 9/16-12


All solid construction E-Z LOK threaded inserts install with standard tools. No special drills...no special taps...no special installation tools.

E-Z LOK external threads are standard size and pitch to permit the use of standard drills and taps. E-Z LOKs can be installed with a screwdriver, bolt/jam nut (except IC series), or optional power drive tool.

E-Z LOKs will not back out or vibrate loose. Immediately upon installation, microencapsulated adhesive begins to set and the newly installed inserts are fastener-ready in 3-5 minutes.

The adhesive seals against liquids and gases to 6,000 psi when fully cured (72 hours).


  • Easy to install: solid threaded inserts install with standard tools, simply drill, tap and thread like any ordinary fastener (no special taps or installation tools are necessary)
  • Strength: carbon steel solid threaded inserts are screw machined out of solid steel for a stronger overall product
  • Standard OD Threads: solid threaded inserts for metal permit the use of standard drills and taps
  • Self-Locking: pre-applied adhesive activates upon installation
  • Vibration Resistant: adhesive secures the carbon steel solid threaded insert into place so it won’t back out
  • Seals against Liquids/Gases: solid threaded inserts are pressurized up to 6,000 psi.


  • Soft metals: aluminum, cast iron, magnesium, etc.


Unlike E-Z Coil™ inserts, which require a special tap and installation tool, E-Z LOK™ (Solid Wall) threaded inserts for metal are installed using standard tools. Simply drill the appropriately sized hole with a standard drill, tap the hole with a standard tap, and then turn in the E-Z LOK™ like an ordinary fastener with a screwdriver, bolt and jam nut, or an E-Z LOK™ drive tool. Installation is as easy as 1-2-3.

View Installation Instructions


E-Z Lok P/N: 329-6
For Use in: Metal
Specific Material Use: N/A
Sub-Category: Standard Wall
Style: Solid Wall
Material: Steel - Carbon
System of Measurement: Inch
Internal Thread: 3/8-16
External Thread: 9/16-12
Installed Length: 0.52
Drill Size: 31/64
Tap Size: 9/16-12
Minimum Full Thread Depth: 0.594
Installation Tool P/N: 500-5

Prop 65


WARNING: This product can expose you to lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov. {custitem_ezl_feature1}