7/8-9 X 3-1/2" Socket Cap Screws | Hex Socket Drive | Alloy Steel Thermal Black Oxide (10 / Pkg.)

Upgrade your machinery with our Socket Head Cap Screws in Alloy Steel, finished in a durable Thermal Black Oxide. Sized at 7/8-9 x 3 1/2, these high-strength fasteners deliver reliable performance in demanding applications, providing strong clamping force and long-lasting corrosion resistance.

Key Features

• Material: High-strength alloy steel for improved durability and load-bearing capability
• Finish: Thermal black oxide coating for enhanced corrosion resistance and a sleek look
• Drive: Socket head design for recessed, low-profile drive with precise torque control
• Thread Size: 7/8-9 UNC for robust engagement and compatibility with standard fastener hardware
• Length: 3 1/2 inches, ideal for thick or layered assemblies

Specifications

• Diameter: 7/8 in
• Thread Pitch: 9 TPI (UNC)
• Length: 3-1/2 in
• Finish: Thermal Black Oxide
• Material: Alloy Steel
• Drive Type: Socket Head (Allen)

Applications

Ideal for heavy-duty machinery, automotive assemblies, equipment housings, and other high-stress applications where strong clamping power and a clean, recessed drive are essential.