E-z Lok 453-3 Thread Locking Insert M3 X 0.5 Stainless

Product Description

The E-Z LOK 453-3 is a self-locking threaded insert designed to provide a secure, permanent internal thread in parent materials that require a stronger or more durable fastening point. It features an M3 x 0.5 internal thread and an M6 x 1 external thread machined to Metric Coarse standards, with a 6H internal and 6G external thread class of fit. Manufactured from 303 stainless steel with a bright finish, the insert offers corrosion resistance and a tensile strength of 1,315 pounds. The overall length is 6.5 mm. Installation is performed using a standard tap, making it suitable for use by machinists, maintenance technicians, and field service professionals working with metal assemblies.

The 453-3 self-lock wall insert is suited for applications where vibration or repeated fastener engagement would otherwise compromise thread integrity in softer or thinner base materials. It is appropriate for use in precision mechanical assemblies, equipment enclosures, fixtures, and similar fabrication work where a metric threaded hole must be reinforced or established. The self-lock wall design creates interference with the parent material to resist rotation under load without requiring adhesive or staking.

Key Features

• M3 x 0.5 internal thread with 6H class of fit for precise metric fastener engagement
• M6 x 1 external thread with 6G class of fit for accurate installation in tapped parent material
• 303 stainless steel construction with bright finish for corrosion resistance
• Self-lock wall design resists rotation without adhesive under vibration and load
• 1,315 pound tensile strength for reliable thread retention
• Compatible with standard tap installation - no specialty tooling required

Compatibility

Designed as an OEM-style threaded insert for parent materials tapped to M6 x 1 Metric Coarse using a standard tap, providing an M3 x 0.5 internal thread in metal fabrication and mechanical assembly applications.

Installation Notes

Installation is performed by a machinist or qualified technician using a standard M6 x 1 tap to prepare the parent material hole before driving the insert. Ensure the parent material is secured and all rotating or powered equipment is de-energized before performing insert work on assembled machinery. Do not exceed the rated tensile load of 1,315 pounds in thread pull-out applications. Follow applicable fastener and assembly standards for the industry in which the insert is used.