Value Collection 101259PR Set Screw 10-24 X 1/2 in Cup Point

Product Description

The VALUE COLLECTION 101259PR is a 10-24 UNC cup point set screw designed for secure, low-profile fastening in mechanical assemblies where a flush or recessed connection is required. Manufactured from Grade 8 alloy steel, this set screw delivers high tensile strength and resistance to loosening under vibration and load. The 3/32-inch hex drive accepts a standard hex key for installation into pre-tapped holes. At 1/2 inch in overall length, it is well suited for collars, hubs, pulleys, and shaft-mounted components across a wide range of industrial and mechanical maintenance applications. Conforms to ASME/ANSI B18.3 and ASTM F912 standards.

This set screw is used in residential and commercial mechanical systems wherever shaft-to-collar or hub retention is needed. Common applications include HVAC blower wheel hubs, motor shaft collars, pump couplings, and general mechanical assemblies. The cup point bites into the mating surface to resist rotation and axial movement, making it a standard choice for permanent or semi-permanent shaft retention. It is installed by maintenance technicians, millwrights, and HVAC and plumbing service professionals.

Key Features

• 10-24 UNC thread size for broad compatibility with standard tapped assemblies
• Cup point geometry grips shaft or mating surface to resist rotation and axial slippage
• Grade 8 alloy steel construction provides high tensile and proof load strength
• 3/32-inch hex drive accepts standard hex key or Allen wrench
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and material standards
• 1/2-inch overall length suits shallow-to-medium hub and collar depths

Compatibility

Designed as a standard 10-24 UNC cup point set screw suitable for use in any pre-tapped 10-24 threaded hole requiring a hex drive, cup point fastener per ASME/ANSI B18.3 specifications.

Installation Notes

Installation requires a 3/32-inch hex key. Always de-energize and lock out equipment before servicing any shaft-mounted assembly. Thread the set screw by hand to verify proper thread engagement before applying torque with the hex key. Inspect the mating shaft or bore surface for damage or contamination prior to installation to ensure proper cup point seating.