4-40 X 5/16″ Machine Screws Binder Head Phillips Drive 18/8 Stainless Steel (5000/Pkg.) Fan Favorite

Machine Screws Phil Binder 18/8 Stainless 4-40 x 5/16″ are precision fasteners designed for durable, corrosion-resistant metal-to-metal assemblies. Made from 18/8 stainless steel, these screws deliver dependable strength and excellent resistance to rust, staining, and corrosion—ideal for electronics, cabinetry, machinery, and general hardware applications.

The 4-40 thread size ensures precise engagement in thin materials, while the 5/16 in. length provides a compact, secure bite. The stainless construction helps maintain performance in both indoor and mildly outdoor environments.

Size & Thread: 4-40 thread, 5/16 in. length

Material: 18/8 stainless steel (304)

Finish: Corrosion-resistant stainless finish

Best for: Electronics, cabinetry, machinery assembly, and lightweight hardware projects

Choose these machine screws for long-lasting reliability, precise fit, and corrosion resistance in your next build or repair. Order the Phil Binder 18/8 stainless 4-40 x 5/16 in. machine screws today and experience dependable performance across a range of applications.