#4-40 X 5/8" Machine Screws | Indented Hex Washer Head | Steel Zinc Plated (10000/Pkg.)

Engineered for dependable performance in electronics, cabinetry, and equipment assemblies, these unslotted indented hex washer machine screws deliver secure fastening with a clean, flush profile.

Featuring zinc-plated steel for corrosion resistance, the screws have a 4/40 thread and measure 5/8 inch in length, making them ideal for thin materials and precise assemblies. The unslotted design works with an internal hex drive (Allen), while the indented hex washer head distributes load to minimize material deformation.

Key specifications

• Head style: Indented hex washer head with an unslotted design
• Drive type: Internal hex (Allen) drive
• Material & finish: Steel with zinc-plated finish for corrosion resistance
• Thread size & length: 4-40 UNC, 5/8 inch long
• Applications: Electronics enclosures, control panels, cabinetry, thin-metal assemblies

Whether you’re assembling electronics, panels, or lightweight machinery, these machine screws provide a reliable, professional-grade fastening solution that resists corrosion while delivering a clean, secure appearance.