Our SZHKM plastic nylon bolts and nuts are generally used for but not limited to: <br> 1. M3 nylon screws used for keeping the bottom of a circuit board away from a metal enclosure<br> 2. Holding a PCB board or other electronic components off the back of a polycarbonate board(e.g. Lexan) or acrylic ornament (e.g. Plexiglass) <br> ● RC receivers: e.g. Taranis qx7<br> ● Flight controller (FC) <br> ● Power distribution board (PDB) <br> ● Motherboard<br> ● Robots<br> ● Multi copter/ Multi rotor<br> ● 3D printing electronics<br> <b>All our M3 hex plastic nylon bolts and nuts small m3 screws assortment kitare packed in a plastic box</b><br> <b>Assorted kit list: </b><br> M3 Washesr,100 pcs<br> M3 Hex nut, 100 pcs<br> M3x6mm screw, 30 pcs<br> M3 screws x8mm , 30 pcs<br> M3 screwsx10mm, 30 pcs<br> M3 screwsx12mm, 20 pcs<br> M3 screwsx15mm 20 pcs<br> M3 screwsx20mm, 20 pcs<br>