4-40 X 3/8″ Machine Screws 100 Degree Flat Head Phillips Drive 18/8 Stainless Steel Black Oxide (5000/Pkg.) Fan Favorite

Introducing a bulk-pack solution for dependable fastening: [5000 BULK] 4-40 x 3/8″ Phillips Flat Head Machine Screws with an 18-8 stainless steel body and a black oxide finish. Designed for precision, durability, and corrosion resistance, these screws are perfect for metalworking, electronics enclosures, automotive components, and general hardware assembly.

Each screw features a #4-40 thread and a 3/8 inch length, paired with a 100-degree flat (countersunk) head to sit flush in panels and components. The Phillips drive ensures easy, reliable seating even in tight spaces or with high-volume installation.

Material: 18-8 stainless steel for excellent corrosion resistance and strength

Finish: Black oxide for uniform appearance and additional protection

Size: #4-40 thread, 3/8″ length

Head style: 100-degree flat (countersunk) for flush mounting

Drive type: Phillips drive for secure driving and reduced cam-out

Quantity: 5,000 screws in a bulk pack

Applications: electronics enclosures, metal panels, machinery, automotive components, and general fastening tasks

Upgrade your toolkit with this bulk assortment to ensure you have the right fasteners on hand for rapid assembly, maintenance, and repair projects. Durable, corrosion-resistant, and ready to perform in demanding environments, these screws deliver consistent, high-quality results every time.