Holo-krome 73110 Hex Socket Cap Screw 3/8-24 Unf

Product Description

The HOLO-KROME 73110 is a hex socket cap screw designed for high-strength fastening in precision and structural applications. It features a 3/8-24 UNF thread form with a 1-1/2 inch length under head and is fully threaded along its entire shank. The drive is a 5/16 inch internal hex socket, compatible with standard Allen-type drivers and hex keys. Constructed from alloy steel with a black oxide finish, this fastener delivers solid corrosion resistance and reduced light reflection in service environments. It meets ASME B18.3 and ASTM A574 standards, making it suitable for load-bearing assemblies where dimensional and mechanical consistency is required.

This screw is used across a wide range of industrial and mechanical assembly applications, including machine frames, HVAC equipment housings, pump assemblies, electrical enclosures, and general trade fabrication work. The fine 3/8-24 UNF thread pitch provides greater thread engagement per inch compared to coarse-thread equivalents, offering improved clamping force and resistance to loosening under vibration. It is sold in minimum order quantities of 100 pieces, making it appropriate for production and service inventory applications.

Key Features

• 3/8-24 UNF fine thread for high clamping force and vibration resistance
• 1-1/2 inch length under head, fully threaded shank
• 5/16 inch hex socket drive for use with standard Allen keys or hex bit drivers
• Alloy steel construction meets ASTM A574 mechanical requirements
• Black oxide finish provides mild corrosion resistance and low-glare surface
• Conforms to ASME B18.3 dimensional standards

Compatibility

Designed as an OEM-style replacement or production fastener for any application requiring a 3/8-24 UNF fully threaded hex socket cap screw with a 1-1/2 inch grip length, per ASME B18.3 specifications.

Installation Notes

Install using a calibrated torque wrench and the correct 5/16 inch hex key or socket bit to avoid cam-out and fastener damage. De-energize or lock out any equipment before accessing fastener locations on live mechanical or electrical assemblies. Apply thread-locking compound where vibration is a concern, following the assembly manufacturer's recommendations. Always verify thread engagement depth and mating material compatibility before final torque.