Value Collection 307117PR Hex Socket Cap Screw 5/16-18

Product Description

The VALUE COLLECTION 307117PR is a hex socket cap screw designed for high-strength fastening applications in mechanical, structural, and industrial assemblies. It features a 5/16-18 UNC thread size with a 2-1/4 inch length under the head and is partially threaded, allowing for precise clamping force in bolted joints. The 7/32 inch hex drive accepts standard hex keys and Allen wrenches. Manufactured from alloy steel and finished with a black oxide coating, this screw offers improved corrosion resistance and reduced light glare in service environments. It meets ASTM A574 standards for socket head cap screws. Machinists, maintenance technicians, and fabricators are the typical installers.

This screw is suited for use in machine assemblies, fixturing, equipment frames, and general industrial fastening where a recessed drive and high tensile strength are required. The 5/16-18 UNC thread is a common coarse-thread specification found across a wide range of OEM and aftermarket mechanical equipment. The partially threaded shank provides a grip length that resists shear loads better than fully threaded fasteners in through-bolt applications. This screw ships in a minimum order quantity of 10 units per order.

Key Features

• 5/16-18 UNC coarse thread for broad compatibility with standard tapped holes
• 2-1/4 inch length under head with partial threading for improved shear resistance
• 7/32 inch hex socket drive accepts standard hex keys
• Alloy steel construction meets ASTM A574 socket head cap screw standard
• Black oxide finish provides mild corrosion resistance and low-reflectivity surface

Compatibility

Designed as a standard 5/16-18 UNC hex socket cap screw for use in any application requiring an ASTM A574-compliant partially threaded fastener with a 7/32 inch hex drive.

Installation Notes

Installation is performed using a 7/32 inch hex key or Allen driver. Ensure the mating tapped hole is clean and free of debris before threading. Follow applicable torque specifications for 5/16-18 alloy steel socket cap screws as defined by the relevant mechanical or structural code for your application. Minimum order quantity is 10 units.