Value Collection 101385PR Set Screw 5/16-18 X 7/16 in Cup Point

Product Description

The VALUE COLLECTION 101385PR is a cup point set screw designed for secure shaft-to-hub clamping in mechanical assemblies. Manufactured from Grade 8 alloy steel, this fastener delivers high tensile strength and resistance to loosening under vibration and torque loads. It features a 5/16-18 UNC thread and an overall length of 7/16 inches. The 5/32-inch hex drive (socket set) allows installation with a standard hex key. The cup point geometry bites into the mating surface to resist rotation and axial movement. This screw meets ASME/ANSI B18.3 and ASTM F912 standards, making it appropriate for precision industrial and mechanical applications where dimensional and grade compliance are required.

Cup point set screws like the 101385PR are commonly used in industrial machinery, power transmission components, and mechanical drives. Typical applications include securing collars, pulleys, gears, and sprockets to shafts. The UNC thread form is standard in North American manufacturing environments. This fastener is sold in a minimum order quantity of 100 pieces per order, with a package quantity of 1 per unit listed. It is suited for use by maintenance technicians, millwrights, and mechanical assemblers working on rotating equipment and structural mechanical connections.

Key Features

• Cup point geometry bites into shaft surface for positive gripping and resistance to axial and rotational movement
• Grade 8 alloy steel construction provides high tensile and proof load strength
• 5/16-18 UNC thread for compatibility with standard North American fastener tooling
• 5/32-inch hex drive accepts standard hex keys and Allen wrenches
• Meets ASME/ANSI B18.3 and ASTM F912 standards for dimensional and material compliance
• 7/16-inch overall length suits shallow-engagement collar and hub applications

Compatibility

Designed as an OEM-style replacement or standard-spec set screw for mechanical assemblies requiring a 5/16-18 UNC cup point fastener conforming to ASME/ANSI B18.3 and ASTM F912.

Installation Notes

Installation is performed with a 5/32-inch hex key; ensure the key is fully seated before applying torque to avoid rounding the drive socket. Degrease the shaft and bore contact surfaces before installation to allow the cup point to seat properly against the shaft. Do not exceed the recommended seating depth for the mating material to avoid surface damage. Minimum order quantity requirements should be confirmed before ordering for low-volume jobs.