

Press-In Insert for Thermoplastics
This insert has beem designed especially for press-in installation in most thermoplastics.
Utilising a combination of sharp radial fins and straight cut vertical knurls it features a free running thread and easy press-in installation whilst still achieving good torque-out and pull-out performance.
Available in un-headed and headed versions. Studded Versions can also be supplied in a length to suit your application.
For best performance we recommend a pre-moulded hole with a 1° taper (the hole diameter specified should be met at the point reached by the bottom of the insert).
It is important that this insert is installed by a steady squeezing action to allow the plastic to flow over the radial fins. A hammer blow style of installation would result in poor pull-out performance and could possibly damage the insert.
Ultrsonic Insert for Thermoplastics
Symmetrical Insert for Thermoplastics
Press-In Locking Insert for Thermoplastics
Press-In Insert for Thermoplastics
Insert for Amorphous Thermoplastics
Insert for Brittle Thermoset Materials
Expansion Insert for Hard Plastics
Blind End Insert for Mould-In Applications
Fastener & Application Testing
Design & Development of bespoke Fasteners
| Thread | D | H | B | A | L | Number of Fins |
Hole Size +0.10 -0.0 |
Min Wall Thickness |
| M2 | 3.7 | 4.8 | 0.45 | 3.1 | 4.0 | 2 | 3.2 | 1.6 |
| M2.5 | 4.5 | 5.5 | 0.58 | 3.9 | 4.8 | 3 | 4.0 | 2.0 |
| M3 | 4.5 | 5.5 | 0.58 | 3.9 | 4.8 | 3 | 4.0 | 2.0 |
| M3.5 | 5.3 | 6.4 | 0.74 | 4.7 | 6.4 | 4 | 4.8 | 2.4 |
| M4 | 6.1 | 7.1 | 0.89 | 5.5 | 7.9 | 5 | 5.6 | 2.8 |
| M5 | 7.0 | 7.9 | 1.07 | 6.3 | 9.5 | 5 | 6.4 | 3.2 |
| M6 | 8.6 | 9.5 | 1.32 | 7.9 | 12.7 | 7 | 8.0 | 4.0 |
| M8 | 10.2 | 11.1 | 1.32 | 9.5 | 12.7 | 7 | 9.6 | 4.8 |
| Materials | Part Number Examples |
Brass (B) |
Type | Thread | Material i.e. : FLI-M3-B (Press-In Insert-M3-Brass) i.e. : HFLI-M4-4.8-B (Headed Press-In Insert-M4-Brass) |

