M2.5/M3/M4 Grade 12.9 Nickel Plated Hexagon Screws High Strength Cylinder Head Bolts Half Teeth Cup Head Screws for Molds & Equipment

Grade 12.9 Nickel Plated Hexagon Screws are professionally engineered for high-performance fastening in industrial machinery, heavy-duty assembly, molds, and precision equipment applications. Crafted from high-strength alloy steel and finished with nickel plating, these screws deliver exceptional tensile strength, hardness, and wear resistance—meeting the strict standards of Grade 12.9 for reliable heavy-duty use.

 

The nickel plating not only enhances corrosion and rust resistance but also provides a smooth, professional finish, making the screws suitable for both indoor and industrial environments where durability and aesthetics matter. Featuring a cylinder (cup) head design and half-thread structure, these hexagon screws offer stable clamping force, easy installation with a hex key, and efficient insertion into mounting holes—reducing slippage and ensuring secure torque transfer.

 

Available in M2.5, M3, and M4 sizes, they are versatile enough to fit a wide range of professional applications, including mold assembly, industrial machinery, automotive components, precision instruments, and heavy-duty equipment maintenance. The half-thread design balances clamping stability and installation convenience, making them ideal for scenarios where a firm, long-lasting connection is required.

 

Suitable for professional manufacturers, engineers, maintenance technicians, and industrial users, these Grade 12.9 nickel plated screws combine high strength, corrosion resistance, and ease of use—delivering consistent performance for even the most demanding fastening tasks.