Welcome to Handan Zhongpin Fastener Manufacturing Co., Ltd., a leading manufacturer and supplier of high-quality fasteners in China. We are proud to introduce our Half-round Head Square neck bolt and DIN603 Carriage Bolt to meet your fastening needs. Our Half-round Head Square neck bolt is designed with a square collar under the head, preventing it from turning during assembly. It is commonly used in wood and metal construction, offering a secure and durable fastening solution. Our DIN603 Carriage Bolt features a smooth, rounded head and a square neck, ideal for applications requiring a visually appealing finish. With precision manufacturing and strict quality control, our fasteners are made to the highest standards to ensure reliable performance and longevity. Whether you are in construction, machinery, or any other industries, our fasteners are the perfect choice for your projects. Choose Handan Zhongpin Fastener Manufacturing Co., Ltd. as your trusted supplier for all your fastener needs. Contact us today for more information on our products and services.