Value Collection 011035P Hex Socket Cap Screw 4-40 Unc

Product Description

The VALUE COLLECTION 011035P is a hex socket cap screw designed for precision fastening in mechanical assemblies, fixtures, and equipment where a low-profile, high-strength fastener is required. Threaded 4-40 UNC and measuring 3/8 inches in length under the head, this screw is fully threaded and driven with a 3/32-inch hex (Allen) key. Constructed from alloy steel with a black oxide finish, it offers solid mechanical strength and moderate corrosion resistance in dry or lightly oiled environments. Machinists, maintenance technicians, and assembly workers commonly specify this type of fastener for tight-clearance applications.

This screw is suited for use in light machinery, electronic enclosures, instrumentation panels, and precision mechanical assemblies where a standard external hex head would interfere with adjacent components. The 4-40 UNC thread is a common fine-pitch imperial standard frequently encountered in instrument-grade and light-duty mechanical work. Its compact drive size and full threading make it appropriate wherever complete thread engagement is needed in shallow or through-hole applications.

Key Features

• 4-40 UNC thread size for compatibility with standard inch-series tapped holes
• Fully threaded body for maximum thread engagement along the entire 3/8-inch length under head
• 3/32-inch hex socket drive for use with standard Allen keys or hex bit drivers
• Alloy steel construction provides high tensile strength relative to fastener size
• Black oxide coating offers mild corrosion resistance and reduces light reflection in optical or instrument assemblies
• Meets ASME/ANSI B18.3 and ASTM A574 fastener standards

Compatibility

Designed as a standard replacement or stock fastener for any application requiring a 4-40 UNC fully threaded hex socket cap screw with a 3/8-inch length under head, conforming to ASME/ANSI B18.3 and ASTM A574 specifications.

Installation Notes

Installation is performed by machinists or assembly technicians using a 3/32-inch hex key or Allen bit driver. Ensure the mating tapped hole is clean and free of debris before driving the fastener. Do not overtighten, as the small thread size is susceptible to galling and thread stripping. When used in critical assemblies, consult engineering specifications for appropriate torque and thread engagement requirements.