Value Collection 015397PR Hex Socket Cap Screw 1/2-20 Unf

Product Description

The VALUE COLLECTION 015397PR is a hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. It features a 1/2-20 UNF thread size, a 1-1/2 inch length under head, and a 3/8 inch hex drive. Constructed from alloy steel with a black oxide finish, this fastener delivers reliable corrosion resistance and a clean, low-profile appearance. It is fully threaded along its entire length under head, making it suitable for through-hole and blind-hole fastening where maximum thread engagement is required. Licensed trades, maintenance technicians, and fabricators rely on this type of fastener for precision-fit mechanical connections.

This screw is appropriate for use in machinery assembly, HVAC equipment mounting brackets, electrical panel fabrication, and general industrial maintenance. The fine 1/2-20 UNF thread pitch provides greater tensile strength and finer adjustment than coarse-thread equivalents, making it a preferred choice where vibration resistance or tight tolerances are needed. It is commonly driven with a 3/8 inch hex key or Allen wrench and is suitable for both new installations and replacement applications in existing equipment.

Key Features

• 1/2-20 UNF fine thread for higher tensile strength and vibration resistance
• Fully threaded 1-1/2 inch length under head for maximum thread engagement
• Alloy steel construction meets ASTM A574 and ASME/ANSI B18.3 standards
• Black oxide finish provides mild corrosion resistance and reduces light reflection
• 3/8 inch hex socket drive for use with standard hex keys or Allen drivers
• Conforms to IFI 124 fastener standards

Compatibility

Designed as an OEM-style replacement or new-installation fastener for industrial and mechanical assemblies requiring a 1/2-20 UNF hex socket cap screw with a 1-1/2 inch length under head.

Installation Notes

Installation is typically performed by maintenance technicians, millwrights, or mechanical contractors using a 3/8 inch hex key or socket driver. Ensure mating threads are clean and free of debris before installation. Do not over-drive; follow the torque requirements specified by the equipment manufacturer for the assembly being serviced. Alloy steel fasteners with black oxide finish are not intended for outdoor or high-moisture environments without additional corrosion protection.