[100 PKG] Socket Head Cap Screws Alloy Steel Thermal Black Oxide 1/4-20 X 3/8

Socket Head Cap Screws in alloy steel with a durable thermal black oxide finish for reliable performance in demanding environments. Designed with a compact, cylindrical head and a hex drive, these fasteners provide high-torque capability and precise seating in tight spaces.

This size features a 1/4-20 UNC thread and a length of 3/8 in, making it ideal for a wide range of mechanical, automotive, and industrial applications where strength and consistency matter.

Key specifications

• Material: Alloy steel
• Finish: Thermal black oxide
• Head style: Socket head cap screw
• Drive type: Hex socket
• Thread: 1/4-20 UNC
• Length: 3/8 in

Applications

Use these socket head cap screws for equipment assemblies, machinery, fixtures, and projects requiring strong, secure fasteners with a clean, low-profile appearance. The thermal black oxide finish provides corrosion resistance and an understated, professional look without adding significant weight.

Why choose alloy steel fasteners

Alloy steel offers superior strength and durability for demanding applications, while the black oxide finish reduces glare and adds basic corrosion resistance in non-severe environments. These screws are compatible with standard hex keys (Allen wrenches) for easy installation and reliable torque transfer.