Holo-krome 72282 Hex Socket Cap Screw 5/8-11 Unc

Product Description

The HOLO-KROME 72282 is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, industrial equipment, and structural connections. It features a 5/8-11 UNC thread and measures 3-1/4 inches in length under the head. The partially threaded shank provides a strong grip in load-bearing joints. Driven by a 1/2-inch hex socket, it is well-suited for installation with standard torque wrenches and hex key sets. The alloy steel construction and black oxide coating give this screw the mechanical strength and corrosion resistance required in demanding service environments. Machinists, millwrights, and maintenance technicians are the primary installers of this fastener type.

This screw is used in a wide range of applications including machinery assembly, fixture fabrication, and equipment maintenance across industrial, commercial, and manufacturing settings. Its 5/8-11 UNC coarse thread pattern is compatible with standard tapped holes of the same size and thread class. The black oxide finish reduces light reflection and provides a modest level of surface protection against moisture and mild corrosion, making it practical for interior mechanical environments and controlled industrial spaces.

Key Features

• 5/8-11 UNC coarse thread for use with standard tapped holes
• 3-1/4 inch length under head suits deep or stacked-joint applications
• Partially threaded shank provides clamping force and shear resistance
• 1/2-inch hex socket drive for use with torque wrenches and hex keys
• Alloy steel construction meets ASME B18.3 and ASTM A574 standards
• Black oxide coating offers surface protection and low reflectivity

Compatibility

Designed as a standard-replacement hex socket cap screw for any application requiring a 5/8-11 UNC partially threaded fastener conforming to ASME B18.3 and ASTM A574.

Installation Notes

Installation should be performed by a qualified machinist, millwright, or maintenance technician familiar with fastener torque requirements for the joint material and application. Always ensure the tapped hole is clean and free of debris before threading. Use a calibrated torque wrench to achieve proper clamp load without overloading the fastener. De-energize and lock out all equipment before servicing any assembly that involves fastener removal or replacement.