High-Quality 4.2mm Hex Socket Head Screw Set for Metal - 25/35/45/50/55mm Sizes

Detailed descriptionName: Hexagonal Drill Tail Self tapping ScrewMaterial: Carbon SteelSurface treatment: GalvanizedProduct features1: Super hardness: The screw is in the shape of a drill tail, sharp and easy to penetrate2: Spiral thread: The thread has a fastening effect and the screw section is smooth and flat3: Standard hexagonal shape, more uniform force distribution4: Rubber ring pad, transparent rubber pad anti slip and anti looseningSize:1 inch=25mm（570pcs/box）1-1/4 inch=35mm （430pcs/box）1-3/4 inch=45mm （330pcs/box）2 inch=50mm （270pcs/box）2-1/4 inch=55mm （290pcs/box）