Brass Heat-Set Inserts for Plastic
Flanged, 1/4"-20 Thread Size, 1/2" Installed Length
Install these inserts into plastic parts to create a secure base for fasteners. Also known as Chevron and headed inserts, they are often used to strengthen mounting holes on brittle plastics, such as on 3D printed parts. Unlike plastic threads, which wear down with repeated use, these threads hold their shape over a long life. Press inserts into straight holes that have been drilled, printed, or molded into plastic parts, then heat them with a soldering tip to melt the surrounding plastic. As the plastic cools, it fuses to the sharp, diagonal ridges around the inserts, which withstand torque and prevent the inserts from being pulled out. The interior is fully threaded, so you can access the threads from both sides of a through-hole.
Flanged inserts have a wider end than standard inserts, which gives them a larger load-bearing surface and makes them harder to pull out. The flange also gives you a larger contact area for soldering. When threading into the flanged side, these inserts prevent over-tightening, which can cause brittle plastic to crack.
Made with lead, brass inserts are stronger than aluminum and other brass alloys but not as strong as 18-8 stainless steel inserts. They have good corrosion resistance.
For Use In | Plastic |
Threaded Insert Type | Heat Set |
Thread Insert Style | Flanged |
Material | Brass |
System of Measurement | Inch |
Thread Direction | Right Hand |
Thread Size | 1/4"-20 |
Thread Type | UNC |
Thread Spacing | Coarse |
Thread Fit | Class 2B |
Installed Length | 1/2" |
For Minimum Material Thickness | 0.53" |
Flange |
|
Thickness | 0.05" |
Diameter | 3/8" |
Drill Bit Size | O |
For Maximum Hole Diameter | 0.316" |
End Type | Open |
Tensile Strength | Not Rated |
RoHS | RoHS 3 (2015/863/EU) compliant with exemption 6(c) - Lead in copper alloy |
REACH | REACH (EC 1907/2006) (06/27/2024, 241 SVHC) Compliant |
DFARS | Specialty Metals COTS-Exempt |
Country of Origin | United States |
USMCA Qualifying | No |
Schedule B | 741539.0000 |
ECCN | EAR99 |
Related Products | Soldering Installation Tips |
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Soldering Iron, 60W |