Value Collection 307044PR Hex Socket Cap Screw 4-40 Unc

Product Description

The VALUE COLLECTION 307044PR is a hex socket cap screw designed for fastening applications that require a recessed drive and a clean, low-profile head. Sized at 4-40 UNC with a 1/2-inch length under head, this screw is fully threaded and driven with a 5/64-inch hex key. It is manufactured from alloy steel and finished with a black oxide coating, which provides mild corrosion resistance and reduces light reflection on the fastener head. This part meets ASTM A574 specifications for alloy steel socket cap screws, making it suitable for use in mechanical assemblies, electrical enclosures, and light industrial applications. Installation is performed by maintenance technicians, assemblers, and field service professionals.

This screw is well suited for precision fastening in tight-clearance assemblies where a standard hex head or Phillips driver cannot be used. The 4-40 UNC thread is commonly found in instrument panels, electronics enclosures, small mechanical components, and light-duty structural connections. The black oxide finish is appropriate for interior or low-moisture environments. Sold in minimum order quantities of 100 pieces, this fastener is intended for shop stock, production line use, or service van inventory replenishment.

Key Features

• 4-40 UNC thread size for precision small-fastener applications
• 1/2-inch length under head, fully threaded along entire shank
• 5/64-inch hex socket drive for use with standard hex keys or Allen drivers
• Alloy steel construction meets ASTM A574 specification
• Black oxide coating provides mild corrosion resistance and matte appearance
• Minimum order quantity of 100 pieces for stock or production use

Compatibility

Designed as an OEM-style replacement or stock fastener for assemblies using 4-40 UNC threaded hex socket cap screw fasteners conforming to ASTM A574.

Installation Notes

Install using a 5/64-inch hex key or Allen driver; do not substitute a larger or worn key, as this can strip the socket. Ensure mating threads are clean and free of debris before driving. Apply appropriate thread-locking compound if vibration resistance is required for the application. Black oxide finish is not a heavy-duty corrosion barrier -- use stainless or coated alternatives in wet or outdoor environments.