Value Collection 33631 Hex Socket Cap Screw 3/8-16 Unc 50pk

Product Description

The VALUE COLLECTION 33631 is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, fixtures, and structural connections. Sized at 3/8-16 UNC with a 5/8-inch length under head, this fastener is fully threaded and driven with a 5/16-inch hex key. The alloy steel construction with a black oxide finish provides solid corrosion resistance for interior and protected exterior use. Sold in a package quantity of 50, this screw is suited for shops, maintenance crews, and trade professionals who need reliable fasteners in volume. Meets ASME/ANSI B18.3 and ASTM A574 standards.

This screw is used across a broad range of trade and industrial applications including HVAC equipment assembly, panel and bracket mounting, plumbing fixture installation, and general mechanical work. The 3/8-16 UNC coarse thread pattern allows for fast engagement in tapped steel and aluminum components. The black oxide finish blends function with a low-profile appearance suitable for exposed fastener locations in finished equipment. Each package contains 50 screws, making this a practical bulk option for service vans and shop inventory.

Key Features

• 3/8-16 UNC coarse thread for fast, secure engagement in standard tapped holes
• Fully threaded along the 5/8-inch length under head for maximum thread engagement
• 5/16-inch hex socket drive for use with standard Allen keys and hex bit drivers
• Alloy steel construction meets ASTM A574 for high tensile strength requirements
• Black oxide finish provides mild corrosion resistance and a clean, dark appearance
• Packaged in quantities of 50 for efficient shop and field restocking

Compatibility

Designed as a standard 3/8-16 UNC hex socket cap screw suitable for use in any tapped hole or threaded insert conforming to the 3/8-16 UNC thread standard per ASME/ANSI B18.3.

Installation Notes

Install using a calibrated 5/16-inch hex key or hex bit driver. Power down and de-energize any equipment before replacing or installing fasteners on live assemblies. Follow applicable mechanical and structural codes for fastener seating and torque requirements. Do not substitute a smaller or worn hex key, as this can damage the socket recess and make removal difficult.