Value Collection 011251P Hex Socket Cap Screw 3/8-16 Unc

Product Description

The Value Collection 011251P is a hex socket cap screw designed for secure, high-torque fastening in mechanical assemblies, industrial equipment, and structural applications. It features a 3/8-16 UNC thread and a 3/4-inch length under the head. The recessed 5/16-inch hex drive allows flush or countersunk installation using a standard hex key or Allen driver. Constructed from alloy steel with a black oxide finish, this screw delivers strong tensile performance and moderate corrosion resistance in indoor and protected environments. Fully threaded along its length, it provides maximum thread engagement across the full grip range. It meets ASME/ANSI B18.3 and ASTM A574 dimensional and mechanical standards.

This screw is suited for machine assembly, tooling fixtures, jigs, hydraulic and pneumatic component mounting, and general industrial fastening where a low-profile socket head is required. The 3/8-16 UNC coarse thread is the standard choice for steel-to-steel connections and tapped holes in most ferrous assemblies. Machinists, millwrights, maintenance technicians, and industrial mechanics commonly specify this fastener for both production and MRO applications. The black oxide finish reduces light reflection and provides light surface protection in dry or lightly oiled service conditions.

Key Features

• 3/8-16 UNC coarse thread for broad compatibility with standard tapped holes in steel assemblies
• Fully threaded body maximizes thread engagement across the entire grip length
• 5/16-inch hex socket drive for use with standard Allen keys and hex bit drivers
• Alloy steel construction rated to ASTM A574 for high tensile and proof load requirements
• Black oxide finish reduces reflectivity and provides light corrosion protection in dry environments
• Meets ASME/ANSI B18.3 dimensional standards for consistent fit in precision applications

Compatibility

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

Installation Notes

Installation is performed with a 5/16-inch hex key or socket-drive hex bit. Ensure the mating tapped hole or nut is clean and free of debris before threading to avoid galling the alloy steel threads. Follow applicable torque specifications from your assembly drawing or engineering standard, as ASTM A574 socket head cap screws have specific proof load ratings that must not be exceeded. Always de-energize or depressurize any system before accessing fasteners on live mechanical or hydraulic assemblies.