4-40 X 5/16″ Machine Screws Flat Head Slotted Drive Steel Zinc Plated (10000/Pkg.) New Release

Engineered for dependable fastening, the Machine Screws Slotted Flat Steel Zinc 4-40X5/16 offers reliable performance in metal-to-metal and metal-to-wood assemblies. These screws feature a slotted drive and a flat-head design for flush mounting, with a durable zinc-plated steel construction to resist corrosion.

Key specifications

Thread size: 4-40

Length: 5/16 inch

Head type: flat-head (countersunk) for flush seating

Drive: slotted

Material: steel

Finish: zinc plating for corrosion resistance

Benefits

Strong, durable fastening suitable for precise assemblies

Low-profile head provides clean, professional finishes

Corrosion-resistant zinc coating extends service life in indoor environments

Standard 4-40 size fits a wide range of components and hardware

Applications include electronics enclosures, cabinetry, metal chassis, hobby projects, and other small-scale assemblies where a secure, flush-mitted connection is required.

Enhance your toolkit with these reliable screws that combine strength, precision, and corrosion resistance in one compact package. Add to cart to secure your next project with confidence.