Value Collection 015405PR Hex Socket Cap Screw 1/2-20 Unf

Product Description

The VALUE COLLECTION 015405PR is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, tooling fixtures, and industrial equipment. It features a 1/2-20 UNF thread size with a 2.5-inch length under head and a 3/8-inch hex drive. The fastener is manufactured from alloy steel with a black oxide finish, providing a combination of tensile strength and corrosion resistance suitable for demanding service environments. This screw is partially threaded, which helps maintain clamping force in through-bolt applications. Machinists, millwrights, and maintenance technicians are the typical installers for this class of fastener.

This socket cap screw is suited for use in precision mechanical assemblies, machine frames, hydraulic component mounting, and fixture work where a recessed drive and high clamp load are required. The 1/2-20 UNF fine thread pitch offers better thread engagement and torque control compared to coarse thread equivalents, making it a preferred choice in applications where vibration resistance and precise axial loading matter. It is appropriate for both new construction and maintenance-repair-overhaul work across industrial and commercial settings.

Key Features

• 1/2-20 UNF fine thread for precise torque control and vibration resistance
• 2.5-inch length under head with partial threading for strong clamping in through-bolt configurations
• 3/8-inch hex socket drive for use with standard Allen keys and hex bit drivers
• Alloy steel construction for high tensile strength in demanding mechanical applications
• Black oxide finish provides mild corrosion resistance and reduces light reflection on exposed fasteners
• Meets ASME/ANSI B18.3, ASTM A574, and IFI 124 fastener standards

Compatibility

Designed as a standard hex socket cap screw conforming to ASME/ANSI B18.3, ASTM A574, and IFI 124, suitable for use in any application requiring a 1/2-20 UNF partially threaded socket cap screw with a 3/8-inch hex drive.

Installation Notes

Installation should be performed by qualified machinists or maintenance technicians using a properly sized 3/8-inch hex key or socket bit. Ensure mating threads are clean and free of debris before installation. Apply appropriate thread lubricant or thread-locking compound as required by the assembly specification. Do not exceed the fastener's rated proof load, and use a calibrated torque wrench when specified torque values are provided by the equipment manufacturer.