| 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 |

Q1: What are the main advantages of the QTH Thread Insert?
A: The QTH Thread Insert offers the following key benefits:
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Specifically engineered for thermoplastic parts
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Optimized for thermal installation
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Combines screw-locking and low-tension anchoring
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Delivers high pull-out resistance
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Integrated flange prevents plastic escape during installation
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Enables efficient installation via single-spindle, multi-spindle, or automatic machines with preheating
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Compatible with various thermoplastics (e.g., PPS, ABS, PP)
Q2: How does the installation process work?
A: The installation involves the following steps:
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The insert is heated to the melting temperature of the target thermoplastic.
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When pressed into the mounting hole, heat transfer temporarily plasticizes the surrounding material.
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The softened plastic flows into the undercuts of the insert.
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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.




