China Wholesale Segment Bolt and Nut Factory, Supplier

At Quanzhou Zhongkai Machinery, we take pride in being a leading factory and supplier of high-quality bolts and nuts tailored to meet the global demands of heavy machinery and construction industries. Our extensive product range includes specialized components such as the 40cr Steel Excavator 12.9 Hex Track Bolt and Nut and 12.9 Track Shoe Track Bolt for Heavy Duty Machine. Each of our products is crafted with precision and durability in mind, ensuring they can withstand the rigorous demands of today’s construction and excavation projects, We also offer a comprehensive selection of spare parts, including the Long and Short Master Lubricated Link Bolt and various Bulldozer Spare Parts Bolt and Nut. Our commitment to quality means that we only use premium materials, including 40cr steel, to manufacture our bolts and nuts. This commitment extends to our Premium 40cr Steel Hex Nut and Bolt for Excavator, available in standard sizes like M12, M14, M16, M18, M20, M24, M21, and M23, along with grade ratings of 8.8 and 5.At Quanzhou Zhongkai Machinery, we aim to exceed your expectations by delivering reliable products that drive productivity and performance in every project. Partner with us for your fastening needs and experience the difference in quality and service