Enhance your hardware toolkit with the Hex Head Cap Screws Grade 5 Steel Zinc Plated Coarse Thread 5/16-18×4. These durable fasteners are engineered for reliability in demanding assemblies across automotive, machinery, and construction projects.

Made from Grade 5 steel, these screws deliver strong shear and tensile performance while resisting wear in everyday applications. The zinc plating provides a protective barrier against corrosion, helping your assemblies endure exposure to moisture and humidity.

Specifications

• Size: 5/16-18 threads (coarse)
• Length: 4 inches
• Head type: Hex head
• Material: Grade 5 steel
• Finish: Zinc plated

Key Benefits

• High-strength load bearing for demanding applications
• Coarse 18 TPI thread offers quick assembly and good vibration resistance
• Corrosion protection from zinc plating extends the life of assemblies
• Versatile hex head design compatible with standard wrenches and sockets

Applications

Ideal for automotive assemblies, machinery installation, industrial equipment, and construction projects where reliable grip and consistent torque are essential.

Stocked in standard sizes for rapid replacement and easy sourcing. Pair these Grade 5 steel zinc-plated coarse-thread screws with matching nuts and washers for a secure, long-lasting connection.