#4-40 X 1/2" Machine Screws | Round Head | Slotted Drive | 18/8 Stainless Steel (5000/Pkg.)

Upgrade your assemblies with our Machine Screws Slotted Round Head, crafted from 18/8 stainless steel for exceptional corrosion resistance and dependable strength. These 4-40 UNC screws in a 1/2 inch length are ideal for precise, low-profile fastening in electronics enclosures, appliances, and light machinery. The slotted drive and round head design deliver a clean, professional finish while remaining easy to install with standard tools.

Key features

• Material: 18/8 stainless steel (304) for corrosion resistance and durability
• Head style: Slotted round head for a classic look and flush appearance
• Drive type: Slotted to fit common screwdrivers
• Thread size: 4-40 UNC
• Length: 1/2 inch

Specifications

• Material: 18/8 stainless steel (304)
• Head: Round
• Drive: Slotted
• Thread: 4-40 UNC
• Length: 1/2 in

Applications

• Electronics enclosures and housings
• Small metal assemblies in appliances and equipment
• Hobby projects and DIY repairs requiring precise, compact fasteners

Why choose these screws

• Superior corrosion resistance in humid or indoor environments
• Strong holding power in thin metals and lightweight structures
• Compatibilidad with standard slotted screwdrivers for quick installation

Installation tips

• Use with appropriate 4-40 thread nuts or tapped holes for secure fastening
• Ensure holes are clean and aligned before driving to avoid cross-threading
• Insert with steady pressure and avoid over-torquing to prevent stripping