1. Product Name & Standard Official Name: Hexagon Head Bolt Full thread type: DIN 933 Partial thread type: DIN 931 Common alternative standard: GB/T 5782, GB/T 5783 2. Structural Features Equipped with standard six-sided hex head for wrench tightening. DIN933: The entire shank is fully threaded. DIN931: Features smooth unthreaded shank under head and partial thread on the end. Uniform thread precision for stable matching with standard nuts. 3. Material & Strength Grade Main material: Carbon steel. Regular grades: 3.6-12.9 Stainless steel A2 / A4 versions are available on request. 4. Surface Treatment Standard finish: Blue white zinc plating to achieve basic rust prevention. Optional finishes: Hot-dip galvanized, black oxide, Dacromet coating. 5. Key Advantages -Hex head design enables convenient installation with open-end or socket wrenches. -Two thread versions (full thread & half thread) meet diverse assembly requirements. -Stable mechanical tensile performance, suitable for heavy-load fastening. -Complete size range, customized specifications can be supported. 6. Application Scenarios Widely used for machinery, steel structures, construction equipment, vehicle frames, pipeline installation and general metal component connection.