TOOLCRAFT Machine Screws Allen screws 620590 - Toolcraft TO-5421429, Toolcraft's TO-5421429 Allen screws feature an M2.5 size and an 8 mm length with a hex socket head. These screws are commonly used in precision engineering and assembly applications. The package includes 100 high-quality screws suitable for various fastening needs. Toolcraft TO-5421429 Allen Screws M2.5 8mm Hex Socket 100 pcs