Value Collection 97040 Hex Head Cap Screw 5/16-18 X 4 in

Product Description

The VALUE COLLECTION 97040 is a hex head cap screw intended for general mechanical fastening applications. Manufactured from Grade 5 steel in an uncoated finish, this screw features a 5/16-18 UNC thread pattern and a 4-inch length measured under the head. The partial threading configuration provides a stronger clamping grip in thick-material assemblies where full thread engagement is not required. Conforming to ASME B18.2.1 dimensional standards, this fastener is suited for use in structural, mechanical, and equipment assembly work where a standardized, reliable connection is needed.

This screw is commonly used in industrial, commercial, and light structural applications. The 5/16-18 UNC thread size is one of the most widely encountered coarse-thread sizes in inch-system fastener work. The uncoated steel finish makes this screw appropriate for interior or dry-environment installations. Mechanical contractors, millwrights, equipment installers, and maintenance technicians regularly specify this size and grade for equipment mounting, bracket assembly, and structural panel connections.

Key Features

• Grade 5 steel construction meets standard tensile and proof-load requirements for medium-strength fastening
• 5/16-18 UNC coarse-thread pattern for broad tool and nut compatibility
• 4-inch length under head suits thicker material stacks and spacer assemblies
• Partially threaded shank provides a bearing surface for improved clamping in structural joints
• Uncoated finish for use in dry or interior environments
• Conforms to ASME B18.2.1 dimensional standards

Compatibility

Designed as a standard inch-system hex head cap screw for use with 5/16-18 UNC threaded nuts, tapped holes, and hardware conforming to ASME B18.2.1 specifications.

Installation Notes

Installation is performed with a standard hex wrench, socket, or combination wrench sized to the appropriate hex drive. Ensure mating threads in the nut or tapped hole are clean and free of debris before driving. Apply fastener torque according to the applicable engineering specification or equipment service manual for Grade 5 hardware. Do not exceed the rated torque for the thread size and grade, as over-torquing can cause thread stripping or fastener failure.