Thread size: M4
Length: 20 mm
Head shape: Internal hexagon lens head
Material: Steel
Finish: Black, natural color
Thread type: Metric
Thread pitch: 0.7 mm

With threads according to ISO standard 7380. Requires an internal hexagon key. We offer a wide range of internal hexagon flat head screws made from black, uncoated steel. They are available in various thread sizes and lengths. Details can be found in the data sheet and the series overview, which can be downloaded as a file. If black, uncoated steel in 12.9 is not what you are looking for, we also offer the internal hexagon flat round screw in bright zinc plated steel (BZP) in 10.9 or in stainless steel A2 (304) and A4 (316). Internal hexagon flat head screw with metric thread, 12.9. These hexagon semi-round head screws have a low height and a rounded, dome-shaped head with a hexagon drive. These fasteners are ideal for applications where a wider bearing surface is required. Their black, uncoated surface provides an attractive, high-quality appearance in any setting. Our RS Pro flat head screws with metric threads are made from black, uncoated steel in 12.9. Typical applications: machine tool construction, safety protection, engineering, electronic applications, household use.