5/16"-18 X 5/8" Machine Screws | Fillister Head | Phillips Drive | Steel Zinc Plated (1500/Pkg.)

Machine Screws Phil Fillister Steel Zinc 5/16-18 x 5/8

Durable, zinc-plated steel machine screws with a Phil Fillister head designed for fast, secure metal-to-metal assemblies. Ideal for cabinetry, equipment, and industrial applications where a robust, corrosion-resistant fastener is required.

Key features

• Head type: Phil Fillister — wide bearing surface for flush seating and strong drive engagement.
• Material: Steel with zinc electroplate for corrosion resistance.
• Thread size: 5/16-18 UNC (coarse thread) for quick, secure fastening.
• Length: 5/8 inch overall length.
• Drive compatibility: Designed for Phillips-style drivers for reliable torque transfer.

Applications: These machine screws are well-suited for metal enclosures, electrical panels, machinery, brackets, and furniture assembly where a strong, dependable fastener is needed.

Why choose zinc-plated steel fasteners?

• Resists corrosion in moderate indoor and light outdoor environments
• Economical, durable solution for general purpose fastening
• Versatile for many project types and compatible with common hardware nuts and tapping threads

Tip: For best results, use with a matching nut or tapped hole and ensure proper pilot hole size to maximize holding strength and prevent thread damage.