Holo-krome 72312 Hex Socket Cap Screw 3/4-10 Unc Alloy Steel

Product Description

The HOLO-KROME 72312 is a hex socket cap screw designed for high-strength mechanical fastening in industrial, commercial, and trade applications. This fastener carries a 3/4-10 UNC thread specification with a 2-1/2 inch length under head and is fully threaded along its entire shank. The 5/8 inch hex drive socket accepts a standard hex key or Allen-type driver. Constructed from alloy steel with a black oxide finish, the 72312 delivers both corrosion resistance and the tensile strength required by demanding structural and mechanical assemblies. It meets ASME B18.3 and ASTM A574 standards, making it a recognized choice for engineers and tradespeople who work to published fastener specifications.

This screw is suited for use in mechanical equipment, structural steel connections, machinery frames, and general industrial assemblies where high-clamping-force fasteners are required. The full thread engagement along the shank makes it well suited for applications where the fastener passes through a clearance hole into a tapped bore or where maximum thread contact is needed for pullout resistance. Maintenance mechanics, millwrights, pipefitters, and industrial tradespeople regularly install this type of cap screw in equipment service and fabrication work.

Key Features

• 3/4-10 UNC thread size for heavy-duty fastening applications
• 2-1/2 inch length under head, fully threaded for maximum thread engagement
• 5/8 inch hex socket drive accepts standard hex keys and Allen drivers
• Alloy steel construction meets ASTM A574 high-strength fastener requirements
• Black oxide finish provides mild corrosion resistance and reduces surface reflectivity
• Conforms to ASME B18.3 dimensional standards for socket cap screws

Compatibility

Designed as a standard ASME B18.3 hex socket cap screw for use in any tapped hole or through-hole assembly specifying a 3/4-10 UNC fully threaded socket head cap screw with a 2-1/2 inch length under head.

Installation Notes

Installation is performed by maintenance mechanics, millwrights, or other qualified tradespeople using a 5/8 inch hex key or socket driver. De-energize and lock out all equipment per applicable OSHA lockout/tagout procedures before servicing any fastened assembly. Verify thread condition in the mating tapped hole before installation and apply thread lubricant or anti-seize compound where specified by the equipment manufacturer. Do not exceed the rated torque range for 3/4-10 ASTM A574 alloy steel fasteners as defined by applicable engineering standards.