Flat Head Metric Screw. Thread size: M4. Thread Length: 30mm. Pitch : 0.70mm - Coarse (Standard)Pack Count: 100 PK. Drive type: PhillipsFlat Head Machine Screw Specifications : DIN 965 / ISO 7046Material : Class 4.8 Carbon Steel Nickel Plated .You can order matching nut by following this link: https://www.fixturedisplays.com/index.php?_route_=M4_Hex_Head_Steel_Nuts_5102&search=5102