Value Collection 011037P Hex Socket Cap Screw 4-40 Unc

Product Description

The VALUE COLLECTION 011037P is a hex socket cap screw designed for precision fastening in mechanical assemblies, fixtures, and close-tolerance applications. The screw features a 4-40 UNC thread and a 3/32-inch hex drive, driven by a standard hex key or Allen wrench. It is fully threaded along its 1/2-inch length under the head, providing consistent thread engagement across the full grip range. The body is manufactured from alloy steel and finished with a black oxide coating that provides moderate corrosion resistance and a clean, low-reflectance appearance. Machinists, maintenance technicians, and assembly professionals install this type of fastener across a wide range of industrial and mechanical applications.

This cap screw is suited for use in light mechanical assemblies, instrument panels, electronic enclosures, tooling fixtures, and precision machine components where a low-profile socket drive fastener is required. The 4-40 UNC thread is one of the most common fine-pitch inch-series thread sizes in small-frame applications. Its fully threaded design makes it appropriate for through-hole and short-grip applications where partial threading would reduce engagement. This fastener complies with ASME/ANSI B18.3 and ASTM A574 standards, confirming dimensional and mechanical property conformance for socket head cap screws.

Key Features

• 4-40 UNC thread size for use in standard inch-series tapped holes
• 3/32-inch hex socket drive accepts standard Allen keys and hex bit drivers
• Fully threaded body maximizes thread engagement across the full 1/2-inch length under head
• Alloy steel construction provides high tensile strength relative to fastener size
• Black oxide finish offers mild corrosion resistance and reduces surface glare
• Meets ASME/ANSI B18.3 and ASTM A574 dimensional and mechanical standards

Compatibility

Designed as a standard inch-series socket head cap screw for use in any 4-40 UNC tapped hole requiring a hex socket drive fastener with a 1/2-inch length under head.

Installation Notes

Installation requires a 3/32-inch hex key or Allen driver. Ensure the receiving tapped hole is clean and free of debris before driving. Apply appropriate torque for a 4-40 fastener in the base material being used — do not overtighten, as alloy steel socket screws at this size can be vulnerable to thread stripping in soft base materials such as aluminum or plastic. This fastener is sold in minimum order quantities of 100 units per order.