The DUO range is based on a opposing herringbone knurl with the advantage of it being symmetrical. It's designed to be installed into drilled or moulded holes using direct heat. (Not Ultrasonics)
| Thread Size | D mm | P mm | L mm | Hole Size mm | Wall Thickness mm |
| M2 | 3.5 | 3.1 | 3.9 | 3.2 | 1.3 |
| M2.5 | 4.4 | 3.9 | 5.7 | 4.0 | 1.6 |
| M3 | 4.4 | 3.9 | 5.7 | 4.0 | 1.6 |
| M3.5 | 5.2 | 4.7 | 7.1 | 4.8 | 1.8 |
| M4 | 6.1 | 5.5 | 8.1 | 5.6 | 2.1 |
| M5 | 6.8 | 6.3 | 9.5 | 6.4 | 2.6 |
| M6 | 8.5 | 7.9 | 12.7 | 8.0 | 3.3 |
| M8 | 10.0 | 9.5 | 12.7 | 9.6 | 4.5 |
| M10 | 12.3 | 11.8 | 12.7 | 11.9 | 6.0 |
All dimensions in millimetres unless stated.
High torque and pull-out resistance Suitable for thin boss walls to maximise design space Design allows rapid installation using heat Symmetrical to aid with installation Available in shorter lengths
Example designation: FSUK DUO B M3
Please note: Hole sizes apply to the point reached at the bottom of the insert
Most sizes ex stock
Most sizes available from stock — contact FSUK for further info.
Get in touch for pricing, availability and technical details on DUO: Inserts for Thermoplastics.
DUO: Inserts for Thermoplastics
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