| A Thread size | M6x1.0 |
| L Insert lengths | 12.7 mm |
| OD Insert diameter | 8.5 mm |
| Base panel material | Plastic |
| H Hole diameter | 8.0-8.1 mm |
| W Min. wall thickness | 4.0 mm |
| Materials | Brass |
| Surface Treatment | Cleaning |
| Installation Equipment/Method | Press-in Threaded Inserts |
Press-in Threaded Inserts for Thermoplastics: A Comprehensive Overview
ress-in threaded inserts are engineered to provide strong, reliable, and reusable threads in thermoplastic materials. They offer a superior alternative to molding-in or ultrasonic inserts, combining high performance with straightforward installation.
Key Advantages and Features
Press-in inserts are designed with several critical benefits that make them a preferred choice for engineers and manufacturers:
✔ High Pull-Out and Torque Performance: These inserts are engineered to withstand significant axial (pull-out) and rotational (torque) forces, ensuring a secure and lasting connection that will not fail under stress.
✔ Easy Press-In Insertion: Installation is simple and efficient. The inserts can be pressed into a pre-molded or drilled hole using standard arbor presses, pneumatic presses, or even automated assembly equipment, significantly reducing assembly time and cost.
✔ Designed for Thermoplastics: Specifically optimized for use with a wide range of engineering thermoplastics, including ABS, PP, Nylon, Polycarbonate, and more. The design minimizes stress during installation to prevent cracking in the host material.
✔ Self-Locking Expansion Mechanism: The defining feature is their unique expansion principle. As the mating screw is driven into the insert, the internal slotted body expands radially outward. This creates a powerful mechanical lock within the plastic, dramatically increasing resistance to pull-out and rotation. This action also provides a degree of self-locking action on the screw itself, helping to prevent vibration-induced loosening.
Critical Installation Instruction: Screw Dimensioning
✔ For the insert to function as designed, achieving full expansion is absolutely critical. This is entirely dependent on the correct mating screw.
✔ Influence of Screw Dimensions: The length of the fixing screw is paramount. The screw must be long enough to fully penetrate the entire length of the insert's internal thread.
✔ Achieving Full Expansion: Only when the screw tip passes completely through the bottom of the insert will the slotted body be fully expanded radially, creating the maximum possible locking force and mechanical grip within the plastic substrate.
Final Calculation: Screw length must therefore be carefully calculated to ensure this condition is met before the final clamp torque is applied. Using an incorrectly short screw will result in a weak connection that is highly prone to failure.