The M3 screws shown in the following figure are used to secure the K24 to your carrier card. The length of the screw depends upon the assembly thickness. This example shows the KD240 starter kit with K24 SOM assembly.
See the note about the Samtec REF-226081 alternative mating connector. It is important to check the connector alignment key positions before gently pressing down to fully engage the B2B connectors.
The K24 board assembly onto a KD240 carrier board is a manual mating process. Refer to the following figure for verification of the board-to-board orientation and assembly method (alignment key).
Mating—Manual Press
To protect the mating connector from mechanical stress and to minimize strain during board-to-board assembly, it is important to press the KD240 assembly board simultaneously on all points (A, B, C, D) as shown in the following figure.
After completing the mating process, you need to validate that both board connectors are fully engaged as shown in the following figures.
Completely Mated KD240 Board
The following images show a complete, assembled KD240 carrier card.