Factory Price 4-40 X 2-1/2″ Machine Screws Flat Head Phillips Drive 18/8 Stainless Steel (1000/Pkg.)

Secure, corrosion-resistant fastening for precision assemblies. The Machine Screws Phil Flat 18/8 Stainless 4-40 x 2-1/2 in are built for durability in metal enclosures, electronics, and machinery.

Material: 18/8 stainless steel (304 grade) for excellent corrosion resistance and long-lasting strength.

Size and thread: #4-40 thread; length 2-1/2 inches, ideal for precision assemblies.

Drive type: Phillips (PH) flat-head with a countersunk design for a flush, clean finish.

Finish: Bright stainless finish that resists tarnish and blends with stainless hardware.

Applications: Perfect for electrical enclosures, machinery, and other metal-to-metal assemblies where a reliable, low-profile screw is required.

Usage guidance: Use with a compatible tapped hole or nut-plate; pair with the appropriate driver to avoid cam-out for consistent seating.

Why choose these screws? They combine corrosion resistance, strong holding power, and a tidy appearance in a compact, widely used size. Add the 4-40 x 2-1/2 in Phillips flat head machine screws to your hardware stash and keep assemblies secure in demanding environments.