[300 BULK] Cap Screws Button Socket 18/8 Stainless Black Oxide 4/40 X 3/8

Meet your go-to fastener for precision assemblies: Cap Screws Button Socket 18/8 Stainless in Black Oxide finish. This cap screw features a low-profile, rounded button head and a socket drive for a clean, flush appearance in tight spaces. The 18/8 stainless steel provides excellent corrosion resistance, making it suitable for indoor and outdoor projects, while the black oxide coating offers a stealthy appearance and added surface protection.

Key features:

• Head style: Button socket head
• Material: 18/8 stainless steel (commonly graded 304)
• Finish: Black oxide for low glare and durability
• Thread: 4-40
• Length: 3/8 in
• Applications: electronics, cabinetry, machinery, automotive, furniture and general hardware where a clean, low-profile fastener is needed

Why choose these cap screws? The combination of stainless steel and black oxide delivers long-lasting performance in challenging environments, while the compact 4-40 thread size is ideal for precise, light-duty assemblies. They’re easy to install with the appropriate Allen key and provide a secure, reliable hold when paired with compatible nuts and washers.

Note: For best results, select the correct length to ensure full thread engagement and avoid protrusion, and pair with compatible hardware components for a secure fit.