Features: The flat head provides a semi-flush finish and is suitable for decks, gazebos, pergolas, and other heavy duty applications Smooth round head and square neck design prevents slippage during installation, simplifying the process, especially suitable for applications requiring stable connections, such as timber frames (gazing, barns). Specifications: Material: hot dipped galvanized Color: silver Size: 1/2" x 10" carriage bolts Package includes: 40 x Carriage bolts 40 x USS flat washers 40 x Hex nuts Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. This product contains small parts and poses a choking hazard. Keep away from children and pets to avoid accidental ingestion