Self-locking hexagon socket head cap screw / hexagon socket machine screw M4 x 16 mm with collar made of galvanized steel for universal use, including on your moped, moped and small motorcycle. 
Price per piece
| Total length | 20.1 mm | 
| Material | Steel | 
| Surface | galvanized (blue) | 
| Thread type | M4x0.7 (standard thread) | 
| Drive | Hexagon socket | 
| Screw head | Cylinder head | 
| Ø External head | 6.7 mm, 8.4 mm | 
| Thread length | 16 mm | 
| Width across flats | 3 mm | 
| Shank | No |