M5 X 4 mm Brass Heat set Threaded Round Insert Nut – 25 Pcs.

It sounds like you’re describing a specific type of hardware used in various applications, often in 3D printing, electronics, and other fields requiring strong, reliable fastening solutions. Here’s a breakdown of what you provided:

• M5: Indicates the metric thread size. M5 means the outer diameter of the threaded part is 5 mm.
• X 4 mm: Likely refers to the length of the insert nut.
• Brass: The material of the insert nut, known for its corrosion resistance and good mechanical properties.
• Heat set Threaded Round Insert Nut: These are designed to be inserted into a pre-drilled hole in a thermoplastic part and are set in place using heat. The heat softens the plastic, allowing the insert to embed securely as it cools.
• 25 Pcs: The quantity in the package.

Applications and Benefits

1. 3D Printing: Often used to create strong, reusable threads in printed plastic parts.
2. Electronics: Provides durable threaded inserts for circuit boards and enclosures.
3. General Manufacturing: Useful in various assembly processes where plastic parts need strong, threaded connections.

Installation Tips

1. Heat the Insert: Use a soldering iron or a specialized insertion tool.
2. Press into Place: Apply consistent pressure until the insert is fully embedded.
3. Cool Down: Allow the part to cool completely to ensure the insert is firmly set.

Preparing the threaded insert:

Use the soldering iron on a low setting to preheat the threaded insert using a shallow tapered soldering iron tip.

Install:

When the threaded insert is up to temperature (should only take a few seconds) apply the insert to the appropriate hold. Apply a very little amount of pressure and the insert will melt the plastic in the hole and allow the insert to be set in place. The plastic will flow around the knurls of the insert. Be sure to align the insert squarely and flush to the plastic surface. Remove the soldering iron when it is in place.

Assemble:

After a few moments, the threaded insert will be ‘set’ within the plastic. The threaded insert is ready to receive the screw’s threads and the parts can be assembled.

Feature:

1. Heat-Set is designed specifically for notch-sensitive plastics
2. Expansion-Sets offer simple press-in installation
3. Flow-Sert is a blind insert for installation during the moulding process
4. Brass Material Can Resist Heat.
5. Not Easy to Rust, Strong Corrosion Resistance.
6. Very high pull-out and torque resistance.
7. Can be installed by ultrasonic or Heat into thread tapered hole, or moulded in during injection.
8. No need to counterbore or countersink the boss hole since the insert has guide pilot.
9. Used on the injection moulding for tightly fixing.