Free Returns 4-40 X 3/8″ Machine Screws 82 Degree Flat Head Phillips Drive Steel Black Zinc (10000/Pkg.)

[10000 BULK] Machine Screws Phil 82 Degree Flat Steel Black Zinc 4-40 X 3/8 are precision-engineered Phillips-drive machine screws designed for a wide range of fastening tasks. Crafted from sturdy steel with a durable black zinc finish, these screws resist corrosion and provide reliable performance in metal enclosures, machinery, electronics, and general hardware applications.

Sold in a bulk 10,000-piece quantity, these small-diameter screws measure 4-40 with a 3/8 inch length, offering a compact, secure fastening solution for fine-detail assemblies and projects that require precise thread engagement.

Key features

Bulk quantity: 10,000 screws for long-running projects or stocking up your workshop

Drive type: Phillips (PH) for easy, common bit compatibility

Thread size: 4-40 (fine thread) for precise engagement

Length: 3/8 in (9.5 mm) to suit thin materials and compact assemblies

Material: Steel for strength and durability

Finish: Black zinc coating for corrosion resistance and a sleek look

Applications

Ideal for electronics enclosures, hobby projects, machinery, automotive assemblies, and any application requiring small-diameter, reliable machine screws in bulk.

Ensure a consistent supply on hand with this bulk-pack solution—ready to tackle ongoing builds, repairs, and projects with precision and lasting performance.