Holo-krome 72360 Hex Socket Cap Screw 7/8-9 Unc 6 in

Product Description

The HOLO-KROME 72360 is a hex socket cap screw designed for high-strength fastening applications in industrial and mechanical assemblies. It features a 7/8-9 UNC thread size with a 6-inch length under head and is partially threaded. The 3/4-inch hex drive accepts a standard hex key or socket driver. Manufactured from alloy steel with a black oxide finish, it meets ASME B18.3 and ASTM A574 standards, making it suitable for demanding load-bearing and torque-critical installations. Licensed mechanics, machinists, and maintenance professionals typically specify this fastener when tensile strength and corrosion resistance matter.

This cap screw is used in heavy-duty mechanical assemblies, industrial machinery, structural fixturing, and equipment maintenance where a recessed drive and high clamping force are required. The partial threading allows for controlled clamping across thick materials or when a grip length is needed between mating surfaces. It is a common choice in manufacturing facilities, fabrication shops, and field maintenance environments handling heavy equipment and machinery.

Key Features

• 7/8-9 UNC thread for use in standard unified coarse-thread assemblies
• 6-inch length under head for deep or thick-material fastening
• Partially threaded shank provides a defined grip length for precision clamping
• 3/4-inch hex socket drive accepts standard hex keys and socket tooling
• Alloy steel construction meets ASTM A574 high-strength requirements
• Black oxide finish provides mild corrosion resistance and reduces light reflection

Compatibility

Designed as an OEM-style and aftermarket replacement hex socket cap screw for industrial assemblies requiring 7/8-9 UNC threading conforming to ASME B18.3 and ASTM A574 specifications.

Installation Notes

Installation is typically performed by machinists, millwrights, or maintenance technicians using a 3/4-inch hex key or socket driver. Ensure mating threads are clean and free of debris before installation. Apply thread lubricant or anti-seize compound as appropriate for the service environment. Follow equipment manufacturer torque specifications and applicable industry standards when tightening.