7/8-9 X 4-1/2" Socket Cap Screws | Hex Socket Drive | Alloy Steel Thermal Black Oxide (10 / Pkg.)

Socket Head Cap Screws Alloy Steel Thermal Black Oxide 7/8-9 X 4 1/2 deliver dependable clamping strength in heavy-duty assemblies. Made from high-strength alloy steel and finished with a thermal black oxide, these socket head cap screws resist wear, deliver precise torque, and provide a clean, professional look for automotive, industrial, and equipment applications. The 7/8-9 x 4 1/2 size combines a robust grip with a compact head for space-constrained installs.

Key Features

• Alloy steel construction for high tensile strength and durability
• Thermal black oxide finish for enhanced corrosion resistance and a premium satin appearance
• Socket head design enables high torque transfer with a low-profile head
• Coarse thread, 7/8-9 UNC for strong engagement in a variety of materials
• Length of 4-1/2 inches suits deep or long-bore applications
• Drive type: Hex socket (Allen) for reliable tool engagement

Specifications

• Size: 7/8-9 x 4-1/2 in
• Material: Alloy Steel
• Finish: Thermal Black Oxide
• Head style: Socket Head Cap
• Thread pitch: 9 threads per inch (UNC)
• Drive: Hex socket (Allen)

Applications

• Automotive and vehicle assembly and repair
• Industrial machinery and equipment installations
• Heavy equipment maintenance and fabrication
• Any application requiring strong, precise clamping with a clean appearance

Tip: Pair with matching nuts and washers as specified by your design, and apply appropriate torque with a calibrated torque wrench to achieve optimal clamping and prolong fastener life.