Value Collection 837209PR Hex Socket Cap Screw 5/16-18 Unc

Product Description

The VALUE COLLECTION 837209PR is a hex socket cap screw designed for mechanical assemblies requiring a clean, recessed fastener head. It features a 5/16-18 UNC thread size and measures 1-3/4 inches in length under the head. The screw is partially threaded, which helps resist loosening under vibration and allows for clamping force between joined materials. It is manufactured from alloy steel with a zinc-plated finish that provides basic corrosion resistance in general service environments. Machinists, maintenance technicians, and fabricators install this type of fastener in a wide range of industrial and mechanical applications.

This cap screw is suited for use in equipment assembly, fixture fabrication, and general maintenance work where a socket drive fastener is required. The 5/16-18 UNC coarse thread makes it compatible with standard tapped holes of the same specification. The 1/4-inch hex drive accepts standard hex keys and socket drive tools. It is appropriate for both shop and field use in light to medium-duty structural and mechanical connections.

Key Features

• 5/16-18 UNC coarse thread for use in standard tapped holes
• 1-3/4 inches length under head with partial threading for positive clamping
• 1/4-inch hex socket drive compatible with standard Allen keys and hex bit sockets
• Alloy steel construction for higher tensile strength compared to low-carbon steel fasteners
• Zinc-plated finish for basic corrosion resistance in indoor and sheltered environments
• Meets ASTM B695 fastener standard

Compatibility

Designed for use in any application requiring a 5/16-18 UNC partially threaded hex socket cap screw with a 1/4-inch drive and 1-3/4-inch length under head.

Installation Notes

Installation requires a 1/4-inch hex key or hex socket bit. Ensure the receiving tapped hole is clean and free of debris before threading. Do not overtighten, as alloy steel cap screws can strip zinc-plated or soft-material threaded bores. Follow applicable torque guidelines from your equipment manufacturer or relevant fastener standards for the 5/16-18 thread class.