E-Z LOK solid threaded insert automotive design

Fixing holes with stripped or damaged threads in metal surfaces can be time consuming and frustrating, especially if you don’t have the right tools. E-Z LOK’s self-locking inserts for metal install easily to repair or reinforce threaded holes. Simply drill, tap, and thread in like an ordinary fastener—no special taps or installation tools needed.
Available in 303 and 316 stainless steel, these stainless steel inserts are ideal for applications requiring additional corrosion resistance, as well as food, beverage, and other clean-critical applications.
Both 303 and 316 stainless threaded inserts are available in convenient assortment kits. With a range of sizes on hand, you’ll be ready the next time a threaded hole needs repair.
Request a quote on stainless steel inserts for metal materials, or contact E-Z LOK for more information. 

Installing Inserts for Metal

Unlike coil inserts, which require special tap and installation tools, E-Z LOK solid stainless steel inserts can be installed using only standard tools. The installation process is as easy as 1-2-3:

  1. Drill an appropriately sized hole with a standard drill
  2. Tap the hole with a standard tap
  3. Turn in your stainless steel insert like an ordinary fastener using a screw driver, bolt and jam nut, or an E-Z LOK drive tool


Power Drive Tool
Power drive tools are available for high volume installation. See insert tables for catalog numbers and sizes.

Self-Locking Stainless Steel Inserts

E-Z LOK 303 and 316 stainless threaded inserts are self-locking. Pre-applied Loctite™ on the inserts’ external threads begins to set immediately upon installation and sets in minutes. At full cure (72 hours), the Loctite will seal against liquids and gases to pressures up to 6,000 psi.

E-Z LOK Stainless Steel Inserts at A Glance

  • Available in 303 and 316 stainless steel
  • Drill, tap, and thread in like ordinary fasteners
  • Standard OD threads permit the use of standard drills and taps
  • Self-locking with preapplied adhesive that activates upon installation
  • Vibration resistant: adhesive secures inserts in place to prevent back out
  • Seal against liquids and gasses to pressures up to 6,000 psi