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

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.