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QTH-3824x12.7-HD14.0

Quik-Tek Inserts

QTH Series Inserts

The advantages:
Ideal for thermoplastic parts
Especially designed for thermal installation
Screw-locked and low-tension anchoring
High pull-out values
Flange prevents escape of plastic
Efficient installation due to single-spindle, 
multiple spindle or automatic machines with preheating device
Designed for thermoplastic plastics (PPS. ABS、PP etc.)       

Installation:
The QTH thread insert is heated to the melting temperature of the plastic.
As a result of the heat transfer upon insertion,the plastic is plasticised for a short time and flows into the undercut of the thread insert.Upon cooling,a low-stress interference is realised.        

REQUEST SAMPLES
A  Thread size 3/8-24UNF
L  Insert lengths .500 in
OD  Insert diameter .494 in
P Pilot end .465 in
HD  Head diameter .551 in
T Head thickness .063 in
Base panel material Plastic
H  Hole diameter .453-.457 in
W  Min. wall thickness .236 in
Materials Brass
Surface Treatment Cleaning
Installation Equipment/Method Heat Staking/Ultrasonic

QTH Brass Thermoplastic thread insert-DATA

Q1: What are the main advantages of the QTH Thread Insert?
A: The QTH Thread Insert offers the following key benefits:

  • Specifically engineered for thermoplastic parts

  • Optimized for thermal installation

  • Combines screw-locking and low-tension anchoring

  • Delivers high pull-out resistance

  • Integrated flange prevents plastic escape during installation

  • Enables efficient installation via single-spindle, multi-spindle, or automatic machines with preheating

  • Compatible with various thermoplastics (e.g., PPS, ABS, PP)

Q2: How does the installation process work?
A: The installation involves the following steps:

  1. The insert is heated to the melting temperature of the target thermoplastic.

  2. When pressed into the mounting hole, heat transfer temporarily plasticizes the surrounding material.

  3. The softened plastic flows into the undercuts of the insert.

  4. As the assembly cools, a secure, low-stress interference fit is formed.

Q3: What types of thermoplastics are compatible with QTH inserts?
A: These inserts are designed for use with thermoplastics such as PPS, ABS, PP, and other similar materials.

Q4: Why is the flange design important?
A: The flange acts as a barrier to prevent molten plastic from escaping during installation, ensuring a clean and secure assembly.

Q5: Can these inserts be installed using automated equipment?
A: Yes, the QTH insert supports installation via single-spindle, multi-spindle, or fully automatic machines equipped with preheating capabilities.

Q6: How does the QTH insert achieve high pull-out resistance?
A: The combination of thermal installation, undercut design, and plastic flow during insertion creates a strong mechanical interlock upon cooling.

Q7: What makes this a low-stress anchoring solution?
A: The thermal process minimizes residual stress during installation, reducing the risk of material cracking or deformation.