Holo-krome 73084 Hex Socket Cap Screw 5/16-24 Unf Alloy Steel

Product Description

The HOLO-KROME 73084 is a hex socket cap screw engineered for secure, high-strength fastening in mechanical, industrial, and trade applications. It features a 5/16-24 UNF thread size, a 1-inch length under head, and a 1/4-inch hex drive socket. The fastener is manufactured from alloy steel and finished with a black oxide coating that provides moderate corrosion resistance and reduces light reflection. Fully threaded along its entire length, it delivers consistent clamping force and thread engagement across the full shank. Licensed electricians, HVAC installers, and mechanical contractors use this fastener type when assembling equipment enclosures, brackets, and structural components requiring a recessed drive head.

This cap screw is suited for residential and commercial trade applications where a flush or recessed fastener profile is needed. The 5/16-24 UNF fine-thread specification provides tighter thread pitch compared to coarse-thread equivalents, offering better resistance to loosening under vibration. Typical install scenarios include securing control panel components, motor mounts, and structural brackets in HVAC, electrical, and mechanical systems. The black oxide finish is appropriate for indoor and low-moisture environments.

Key Features

• 5/16-24 UNF fully threaded alloy steel construction for high tensile strength
• 1/4-inch hex drive socket accommodates standard hex keys and Allen drivers
• Black oxide finish for moderate corrosion resistance and reduced surface reflectivity
• 1-inch length under head suits medium-depth fastening applications
• Meets ASME B18.3 and ASTM A574 fastener standards

Compatibility

Designed as an OEM-style and aftermarket replacement hex socket cap screw for applications requiring a 5/16-24 UNF fine-thread, 1-inch length under head, alloy steel fastener conforming to ASME B18.3 and ASTM A574 standards.

Installation Notes

Installation requires a 1/4-inch hex key or Allen driver; use of a calibrated torque wrench is recommended to avoid over-torquing alloy steel fasteners. De-energize and lock out all electrical or mechanical systems before fastener installation or removal in live equipment. Black oxide-finished fasteners are not rated for prolonged outdoor or high-humidity exposure without additional corrosion protection. Consult applicable mechanical codes and equipment manufacturer torque guidelines for the specific assembly.