Introducing our hot-selling product, the Round Head Square Neck Carriage Bolt DIN603! As a factory dedicated to providing top-notch hardware solutions, we take pride in offering this high-quality and durable bolt. Ideal for various applications, our carriage bolt guarantees exceptional performance and longevity. Crafted with precision, it boasts a round head and square neck design for easy installation and enhanced stability. Trust our factory to deliver reliable and efficient solutions for all your hardware needs.