The use of hexagon screws ensures clean work and over-tightening of the threaded head is virtually impossible. Manufacturing according to DIN promises problem-free transferability in all technical areas. The wide range of colours opens up new combination possibilities when assembling your very own, uniquely tasteful computer! Caution: Screws that are too long can damage the radiator. Technical details: Material: galvanized steel Color: black Screw thread size: M4 Dimensions: Quality class: according to DIN 7380 Thread length: 40mm Total length: 42mm Head diameter: 7mm Scope of delivery: 1x screw ISO 7380 M4 x 40 lens head hexagon socket black