8.8 high‑strength carriage bolt, round head square neck bolt for vibrating screen and mining equipment fastening.
- High‑Strength Grade 8.8: Made of high‑carbon steel, high tensile strength, resist loosening under long‑term vibration load.
- Anti‑rotation Square Neck: Square neck locks into mounting hole, prevents bolt spinning during nut tightening.
- Black Oxide Finish: Good anti‑rust performance, suitable for dusty and wet mining & coal‑washing sites.
- Large Round Dome Head: Smooth rounded head will not scratch screen panels or operators.
- Multiple Sizes Available: Complete thread sizes, widely used for screen frame and spare‑part assembly.
Applications
- Vibrating screen frame assembly
- Screen panel fixing
- Coal washing plant equipment
- Mineral processing machinery
- Conveyor accessory fastening