Value Collection 011209P Hex Socket Cap Screw 5/16-18 Unc

Product Description

The VALUE COLLECTION 011209P is a partially threaded hex socket cap screw designed for secure, high-strength fastening in mechanical, structural, and industrial assemblies. The screw features a 5/16-18 UNC thread size and measures 1-3/4 inches in length under the head. It is driven with a 1/4-inch hex key. Constructed from alloy steel with a black oxide finish, this fastener delivers solid tensile strength and corrosion resistance in typical indoor and light-duty outdoor applications. Machinists, millwrights, equipment technicians, and general maintenance tradespeople install these cap screws in a wide range of fabrication and assembly work.

This fastener is suited for use in machine frames, tooling fixtures, mechanical assemblies, and equipment enclosures where a flush or recessed drive head is preferred over an external hex head. The partial threading allows for firm clamping against a bearing surface. The black oxide coating provides mild corrosion protection and reduces galling during installation. Typical applications span manufacturing environments, maintenance repair operations, and light structural assemblies across residential and commercial settings.

Key Features

• 5/16-18 UNC thread size for broad compatibility with standard inch-series tapped holes
• 1-3/4 inch length under head suits medium-depth fastening applications
• Partially threaded shank provides positive clamping and load-bearing contact
• Alloy steel construction offers high tensile and shear strength
• Black oxide finish provides mild corrosion resistance and a low-reflectance appearance
• 1/4-inch hex drive accepts standard hex keys and socket drivers
• Meets ASME/ANSI B18.3 and ASTM A574 fastener standards

Compatibility

Designed as a standard inch-series socket cap screw for use in any tapped hole or threaded insert rated for 5/16-18 UNC fasteners.

Installation Notes

Installation requires a 1/4-inch hex key or Allen-type socket driver. Ensure the receiving hole is cleanly tapped and free of debris before threading. Power down and de-energize any equipment before performing fastener work on live machinery. Apply thread-locking compound or appropriate torque as specified by the equipment manufacturer or relevant standards such as ASME guidelines for the assembly.