1/4-20 X 4" Socket Head Cap Screws | Alloy Steel Thermal Black Oxide (100 / Pkg.)

Socket Head Cap Screws in Alloy Steel with a Thermal Black Oxide finish. This high-strength fastener measures 1/4-20 and is 4 inches long, ideal for precise, secure fastening in machinery, automotive, and industrial assemblies.

Designed for applications requiring a flush, low-profile head and reliable torque, these socket head cap screws deliver durability under demanding conditions. The dark oxide finish provides a uniform appearance and modest corrosion protection, making them suitable for a range of environments where aesthetics and performance matter.

Key Features

• Material: Alloy steel for strength and toughness
• Finish: Thermal black oxide for a sleek, uniform dark appearance
• Head style: Socket head cap screw (Hex drive) for recessed installations
• Thread size x length: 1/4-20 thread, 4 inches long
• Applications: Automotive, machinery, equipment assembly, and industrial fastenings

Why choose these fasteners?

When you need resilient fasteners that withstand vibration and heavy loads, these socket head cap screws deliver reliability. The alloy steel construction provides high tensile strength, while the thermal black oxide finish offers a professional look and additional surface protection for everyday use.

Upgrade your toolkit with these dependable screws and experience secure, repeatable performance in your next project. Order now to ensure you have the right hardware for your 1/4-20, 4-inch requirements.