TOOLCRAFT Machine Screws Allen screws 620590 - Toolcraft TO-5423379, Toolcraft manufactures the TO-5423379 Allen screws, featuring an M3 size and 8 mm length, with a hex socket design. This pack of 100 screws is ideal for precision applications and assemblies requiring secure fastening. They are commonly used in mechanical and engineering projects where reliable tightening is crucial. Toolcraft TO-5423379 Allen Screws M3 8mm Hex Socket 100 Pcs