Value Collection 40419 Cup Point Set Screw 1/2-13 X 1-1/2 in

Product Description

The VALUE COLLECTION 40419 is a cup point set screw designed for secure, no-movement fastening in mechanical assemblies. Manufactured from Grade 8 alloy steel, this fastener delivers high tensile strength and resistance to loosening under vibration and dynamic load. The 1/2-13 UNC thread and 1-1/2 inch overall length make it well suited for medium-to-heavy duty clamping applications. Drive is a 1/4 inch hex (Allen) socket. Compliance with ASME/ANSI B18.3 and ASTM F912 standards confirms dimensional accuracy and mechanical performance. Machinists, millwrights, and maintenance technicians rely on this style of fastener to lock shafts, collars, pulleys, and gears in position without a protruding head.

Cup point set screws are a standard component in rotating machinery, conveyor systems, pump assemblies, and HVAC equipment where shaft-to-hub retention is required. The cup point geometry bites into the shaft surface to resist axial and rotational movement. This fastener is appropriate for steel and cast iron shaft materials in both new installations and maintenance replacement work. Minimum order quantity is 50 pieces per order; package quantity is 1.

Key Features

• Grade 8 alloy steel construction for high tensile and torsional strength
• Cup point geometry bites into shaft surface for positive retention
• 1/2-13 UNC thread for broad compatibility with standard tapped bores
• 1/4 inch hex drive accepts standard Allen keys and hex bit drivers
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and material standards
• No protruding head — fully recessed when installed flush or below surface

Compatibility

Designed as a standard 1/2-13 UNC cup point set screw suitable for use in any threaded bore conforming to ASME/ANSI B18.3 specifications, including shaft collars, hubs, pulleys, couplings, and mechanical assemblies requiring headless fastening.

Installation Notes

Installation requires a 1/4 inch hex key or Allen bit driver. Ensure the mating threaded bore is clean and free of debris before threading. Torque to the fastener manufacturer's published specification for Grade 8 alloy steel at this thread size — do not use generic torque values. Always de-energize and lock out any rotating equipment before servicing or installing set screws in shaft assemblies.