Professional Grade 5/16″-18 X 3″ Machine Screws Pan Head Phillips Drive Steel Black Oxide (400/Pkg.)

Engineered for strength and reliability, this machine screw delivers secure fastening in metal-to-metal applications. The Phil Pan head provides a classic Phillips drive for fast, precise installation, while the steel body offers durability in demanding environments. Finished with black oxide for a uniform dark appearance and added corrosion resistance in typical indoor use, this screw is ideal for a range of projects. Size is 5/16-18 with a standard length of 3 inches.

Key features

Head type: Phil Pan (Phillips Pan) head for reliable driving and a flush, rounded profile.

Material: Steel for strength and durability.

Finish: Black Oxide for a dark, uniform appearance and improved resistance to wear.

Thread size: 5/16-18 UNC for strong, coarse threading.

Length: 3 inches.

Drive: Phillips drive for fast tightening with standard tools.

Applications: Perfect for machines, equipment housing, automotive assemblies, electronics enclosures, and other metal-to-metal fixtures where a sturdy, reliable fastener is required.

Why choose these machine screws? They combine durable steel, a widely compatible Phillips drive, a practical 5/16-18 thread, and a timeless black oxide finish that looks great in any project while providing dependable performance during assembly and service.