
Streamline your engine maintenance with our double-hole four-hole external hexagon hollow screw! Perfect for diesel engines, these oil return pipe joints ensure a secure and efficient connection. Ideal for hydraulic systems, they provide the durability and reliability you need.
Our hydraulic oil bolt screws are precision engineered for strength and performance. Whether you're working on engines, machinery, or other industrial applications, these hexagon hollow screws offer the secure and efficient connection you need. Trust in our high-quality materials for a durable and long-lasting solution.

**German standard din444 loose joint Bolt round head thread with hole fish eye lengthened thick rod round loose joint loose joint Bolt**

Introducing our 10.9 grade high strength lengthened outer hexagonal screw rod! These extra-large tower crane bolts are perfect for heavy-duty applications, offering unparalleled durability and strength. Available in sizes M30, M36, M48, and M56, they are ideal for construction and industrial use.
Crafted from high-quality materials, these bolts are designed to withstand extreme conditions and heavy loads. The lengthened design ensures a secure and stable fit, making them essential for any large-scale construction project. Don't compromise on quality—choose these high-strength bolts for your next build!

Upgrade your construction projects with Handan Anchor Bolt Manufacturers' High-Strength 7-Shaped Anchor Bolts! These construction anchor screws are designed for maximum durability and reliability, ensuring secure fastening in various applications.
Manufactured with precision and quality in mind, these anchor bolts are perfect for both residential and commercial construction. Their high-strength design guarantees long-lasting performance, making them an essential component for any serious construction project.