Rounded head has splined outer circumference with internal hex drive.
9 M Alen Dr M5-0.Fasteners are constructed of steelAll fasteners come in a corrosion resistant, zinc plated finish, allowing them to be used indoors and outDesigned for use with machinery and appliances, but they can be used in an unlimited amount of applications and projectsThe heads of these fasteners feature a standard Phillips head driveEasy to install with only a few simple toolsThread Type: Coarse, Thread Class: 5G/6G, Point Style: BluntSpecification(s) Met: ISO 4762, ISO 898-1, CLASS 12.