FL-M40-HI-CR

Overview

The E-Z LOK FL-M40-HI-CR is an ultrasonic threaded insert designed for post-molding installation in thermoplastic materials. It features a straight flanged body machined from high-quality brass, providing robust mechanical retention within the plastic substrate. The internal thread is M4-0.7 with stainless steel composition to ensure corrosion resistance and durable fastening capabilities. This component utilizes heat-stake or ultrasonic installation methods, allowing for precise alignment and secure embedding without requiring additional adhesives or secondary hardware during the assembly process.

Feature Summary

• Ultrasonic and heat-stake installation capability for thermoplastics
• Straight flanged design for enhanced pull-out strength
• Brass body construction for structural integrity
• Stainless steel internal threading for corrosion resistance

Applications

• Post-molding insertion into thermoplastic components
• Electronic housing assembly requiring metal threads
• Automotive interior trim attachment points
• Consumer appliance casings needing durable fasteners

Procurement Notes

Verify the specific datasheet for the FL-M40-HI-CR to confirm exact dimensional tolerances and material certifications. Ensure compatibility with existing ultrasonic welding equipment parameters. Confirm that the target thermoplastic material can withstand the thermal energy required for proper insertion without deformation. Cross-reference the M4-0.7 thread pitch with mating hardware specifications to guarantee correct engagement.

Selection Notes

Select this insert when a permanent, high-strength metal thread is required within a plastic part using ultrasonic or heat-stake methods. The straight flange style offers superior retention compared to knurled styles in certain soft plastics. Consider the brass body and stainless thread combination for environments where moderate corrosion resistance is needed alongside high mechanical load bearing capacity in thermoplastic substrates.

Part Context

This component belongs to the E-Z Sonic™ series of threaded inserts manufactured by E-Z LOK. These inserts are specifically engineered for integration into plastic parts after the molding process. The series includes various thread sizes and body styles to accommodate different application requirements, focusing on providing reliable metal-to-plastic joining solutions without compromising the structural integrity of the host material.

Replacement Considerations

Direct substitutes include other E-Z LOK inserts with identical M4-0.7 threads and flanged designs, such as the FL-316-HI if brass body preference remains critical. Verify that any replacement maintains the same installation method (ultrasonic/heat-stake) and dimensional profile to fit existing tooling and mold cavities without modification.