Value Collection 011273PR Hex Socket Cap Screw 3/8-16 Unc

Product Description

The VALUE COLLECTION 011273PR is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, tooling, and equipment fabrication. Built from alloy steel with a black oxide finish, this screw delivers corrosion resistance and a consistent surface hardness suited for demanding environments. The 3/8-16 UNC thread and 3-1/4 inch length under head make it a standard choice for medium-to-heavy fastening tasks. A 5/16 inch hex drive provides positive engagement with a standard Allen wrench or hex bit socket. This fastener is partially threaded, which helps maintain clamping force and resist loosening under load. It meets ASME/ANSI B18.3 and ASTM A574 standards, confirming dimensional accuracy and mechanical properties expected by trade professionals.

This socket cap screw is used across industrial maintenance, OEM equipment assembly, machine building, and field repair work. The partially threaded shank is well suited for applications where the grip length must pass through a clearance hole before engaging a threaded bore. Machinists, millwrights, and maintenance technicians will recognize this as a common socket head cap screw format. It is appropriate for both horizontal and vertical fastening orientations where a low-profile, high-torque fastener head is required.

Key Features

• 3/8-16 UNC thread for broad compatibility with standard inch-series tapped holes
• 3-1/4 inch length under head accommodates moderate-depth fastening with a partially threaded shank
• 5/16 inch hex drive accepts standard Allen wrenches and hex bit sockets
• Alloy steel construction provides high tensile strength suitable for load-bearing assemblies
• Black oxide finish offers mild corrosion resistance and reduces light reflection in precision assemblies
• Meets ASME/ANSI B18.3 and ASTM A574 dimensional and mechanical standards

Compatibility

Designed for use in any application requiring a 3/8-16 UNC partially threaded hex socket cap screw with a 3-1/4 inch length under head, conforming to ASME/ANSI B18.3 dimensional standards.

Installation Notes

Installation should be performed by a qualified technician or machinist using a calibrated torque wrench and the appropriate 5/16 inch hex key or hex bit. Ensure the mating tapped hole is clean, free of debris, and cut to the correct thread specification before driving the fastener. Do not use an impact driver at full torque without a torque-limiting socket, as over-torquing alloy steel fasteners can cause thread stripping or fastener fracture. Follow the equipment manufacturer's torque specifications for the assembly being serviced.