Machine Screws Slotted Flat Steel Zinc 5/40 x 5/16 are precision-engineered fasteners designed for durable metal-to-metal connections in a compact size. With a zinc plating for corrosion resistance and a slotted drive for straightforward installation, these screws deliver reliable performance in a wide range of applications.

Key features

• Drive type: Slotted
• Material: Steel
• Finish: Zinc plated
• Size: 5-40 x 5/16 in (diameter #5, 40 TPI, length 5/16 in)
• Use cases: securing metal panels, components in machinery, electronics enclosures, and various hardware assemblies

Why choose these machine screws?

• Durable steel construction provides strong holding power.
• Zinc finish offers corrosion resistance for long-lasting performance.
• Slotted drive enables quick, tool-friendly fastening with common screwdrivers.

Tip: For best results, pair these machine screws with compatible nuts or tapped holes sized for 5-40 x 5/16 and use appropriate thread engagement to ensure a secure fit.