5/16"-18 X 3" Machine Screws | Round Head | Phillips Drive | Steel Zinc Plated (300/Pkg.)

Engineered for reliability, these Machine Screws Phil Round Steel Zinc Plated 5/16-18 x 3 provide strong, corrosion-resistant fastening for metal-to-metal assemblies. The Phillips drive offers easy installation, while the round head delivers a clean, low-profile appearance in exposed applications.

Key specifications

• Material: Steel
• Finish: Zinc Plated
• Head type: Round
• Drive: Phillips (Phil)
• Thread size: 5/16-18
• Length: 3 inches

Applications include metal enclosures, machinery, furniture hardware, and general mechanical assemblies where a durable, easy-to-install fastener is required. Stocked in a standard size for quick replacements and ongoing projects, these screws are designed to withstand daily use and resist rust in mild to moderate environments.