MakerBeam M3 wing type bolts (6mm) attach beams to other MakerBeam elements such as brackets and bearings. Wing type bolts enable additional bolts to be attached to a beam after beam ends have been closed off. Contents: bag of approximately 250 M3 wingt type bolts. Can be used for MakerBeam and OpenBeam profiles (both use M3 size bolts). Application: scientific, electronics, laboratories, home technical projects, displays/exhibits, robotics, etc. MakerBeam.eu is a versatile and lightweight structural system (T-slot) with components that give endless building possibilities in desktop size. There are no fixed positions for mounting giving you the freedom to build your own design easily. All MakerBeam elements can be combined and reused (no welding required) enabling shorter design and assembly times and allowing assembly from your desk or dinner table.