These parts are designed  to mount a micro-atx board to a ikea skadis board. the parts themselfs are screwed on with m5x15 countersunk screws.

Additional parts you will need

• 16x - m5x15 countersunk screws
• 16x - m5 nuts
• 16x m5 washer
• PCIE riser cable (make sure yours mounts similar to this one )
• 2x m3x20 screws (to mount the cable to the riser)
• a whole bunch of motherboard mounting screws
• some double sided adhesion tape

Installation

1. lay out your parts and make sure the screw holes align
2. mark where you would need holes for cable routing
3. cut the holes
4. screw on the parts, the cable cover is jsut beeing fixed by double sided adhesion tape
5. put cables through the holes where needed 
6. screw on the PC parts
7. profit!