Holo-krome 72372 Hex Socket Cap Screw 1-8 Unc Alloy Steel

Product Description

The HOLO-KROME 72372 is a hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and trade assembly work. Threaded 1-8 UNC with a 2.5-inch length under head and a 0.75-inch hex drive, this screw is fully threaded along its shaft. It is manufactured from alloy steel and finished with a black oxide coating, which provides mild corrosion resistance and reduces light reflection in service environments. Licensed tradespeople, millwrights, and maintenance technicians working on equipment assemblies, machine frames, and structural fixtures are the primary installers.

This fastener is suited for use in mechanical assemblies, industrial equipment, and structural connections where a recessed hex drive is preferred over an external fastener head. The 1-8 UNC coarse thread pitch is widely used in general-purpose steel-to-steel fastening and is standard in many machine and equipment builds. The black oxide alloy steel construction makes it appropriate for indoor or low-moisture environments where higher tensile strength is required compared to standard hardware-grade fasteners.

Key Features

• 1-8 UNC coarse thread for reliable engagement in steel components
• Fully threaded shaft along the 2.5-inch length under head
• 0.75-inch hex socket drive for use with standard Allen or hex keys
• Alloy steel construction meets ASME B18.3 and ASTM A574 standards
• Black oxide finish provides mild corrosion resistance and low-glare appearance

Compatibility

Designed as an OEM-style replacement or standard-fit hex socket cap screw for industrial and mechanical assemblies requiring a 1-8 UNC, fully threaded alloy steel fastener per ASME B18.3 and ASTM A574 specifications.

Installation Notes

Installation is performed by qualified tradespeople or maintenance technicians using a calibrated hex key or Allen driver sized to 0.75 inches. Ensure mating threads are clean and free of debris before installation. Follow applicable torque specifications from the equipment manufacturer or relevant ASME guidelines for the fastener grade. Do not use impact tools without confirming thread engagement to avoid cross-threading or fastener damage.