Toolcraft manufactures these Allen screws, featuring a hex socket and dimensions of M4 by 16 mm. They are crafted from steel and zinc galvanized for enhanced durability. Commonly used in machinery and automotive applications, this pack contains 100 pieces. https://elecena.pl/product/28893973/toolcraft-116684-allen-screws-m4x16-steel-galvanised-hex-socket-din-912 2025-06-02 https://elecena.pl/product/28893973/toolcraft-116684-allen-screws-m4x16-steel-galvanised-hex-socket-din-912 2026-07-23