hex head bolt 3d model

High precision 3D model of a standard ISO hex head machine screw, vertical orientation, technical industrial design. [HEAD SECTION]: Top view: Perfect hexagonal shape with flat top surface, slight chamfer on the top outer edges. Bottom view: Flat circular bearing surface underneath the head where it meets the shank. Side profile: Hexagonal head height is proportional to shaft diameter, clean sharp edges. [SHANK & THREAD SECTION]: Upper Shank: Smooth cylindrical unthreaded portion directly below the head. Lower Shank: Continuous helical V-shaped threads running along 80% of the shaft length. Thread Detail: Deep grooves, sharp ridges, consistent pitch, spiral geometry wrapping around the cylinder. Left/Right Symmetry: Perfectly symmetrical cylindrical geometry around the central axis. [TIP SECTION]: Bottom Tip: Flat cut end with a slight 45-degree chamfer for easy insertion, no pointed tip. [MATERIAL & RENDER]: Material: Galvanized steel, metallic silver-grey, realistic mi