Value Collection 011395PR Hex Socket Cap Screw 1/2-20 Unf

Product Description

The VALUE COLLECTION 011395PR is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, tooling, and equipment fabrication. It features a 1/2-20 UNF thread size with a 1-1/4 inch length under the head and is fully threaded along its entire shank. Driven with a 3/8 inch hex key, this fastener is constructed from alloy steel and finished with a black oxide coating that provides mild corrosion resistance and reduces light reflection. It meets ASME/ANSI B18.3 and ASTM A574 standards, making it a code-compliant choice for demanding fastening work.

This screw is suited for use in manufacturing, maintenance, and repair environments where a recessed-drive, high-strength cap screw is required. The fine 1/2-20 UNF thread pitch provides precise thread engagement and improved resistance to loosening under vibration compared to coarse-thread equivalents. Typical applications include machine tool fixtures, hydraulic components, jigs, and structural assemblies where controlled torque and tight tolerances are critical. Installation requires a standard 3/8 inch hex socket or Allen-style key.

Key Features

• 1/2-20 UNF fully threaded shank for maximum thread engagement and vibration resistance
• 1-1/4 inch length under head fits standard socket-cap applications
• Alloy steel construction provides high tensile strength per ASTM A574
• Black oxide finish offers mild corrosion resistance and low-reflectance surface
• 3/8 inch hex drive compatible with standard Allen keys and socket sets
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as an OEM-style replacement or standard-service hex socket cap screw for any application requiring a 1/2-20 UNF fully threaded fastener with a 3/8 inch hex drive and 1-1/4 inch length under the head.

Installation Notes

Installation is performed by machinists, maintenance technicians, or mechanical assemblers using a calibrated torque wrench fitted with a 3/8 inch hex bit or a standard Allen key. Always ensure the mating threaded hole is clean and free of debris before driving the fastener. Do not exceed the rated torque for the thread size and material grade. Black oxide fasteners used in high-moisture environments may benefit from supplemental lubrication or thread sealant to prevent corrosion over time.