5/16"-18 X 3-1/2" Machine Screws | Round Head | Phillips Drive | Steel Zinc Plated (200/Pkg.)

Upgrade your fastening projects with our Phillips round head machine screws, crafted from steel and finished with a durable zinc plating for long-lasting corrosion resistance. The 5/16-18 thread and a generous 3-1/2 inch length deliver strong, reliable performance in a wide range of assemblies.

Designed for a Phillips drive and a round head, these screws provide a clean, flush look and distributes driving pressure for a secure fit. The zinc-plated finish protects against rust in indoor environments and light outdoor use, making them suitable for cabinetry, machinery, equipment housings, furniture, and other metal-to-metal or mixed-material applications.

Specifications

• Drive Type: Phillips
• Head Style: Round
• Material: Steel
• Finish: Zinc plated
• Thread Size: 5/16-18
• Length: 3-1/2 in

Why choose these screws? They combine sturdy steel construction with a dependable zinc finish, ensuring a strong bite and lasting performance in high-stress applications. Perfect for quick repairs and professional-grade assemblies, these 5/16-18 x 3-1/2 in zinc-plated Phillips round head machine screws are a reliable choice for any project.