Value Collection 601004PR Set Screw 0-80 X 5/16 in Cup Point

Product Description

The VALUE COLLECTION 601004PR is a cup point set screw designed for secure, permanent fastening applications where a flush or recessed connection is required. Sized at 0-80 thread with a 5/16-inch overall length, this fully threaded fastener is manufactured from Grade 8 alloy steel, providing high tensile strength and resistance to loosening under load. Drive engagement is achieved with a 0.028-inch hex key. The cup point tip bites into the mating surface to resist rotation and axial movement without requiring a bolt head. This fastener meets ASME/ANSI B18.3 and ASTM F912 standards. Machinists, millwrights, and precision assembly technicians are the primary installers.

This set screw is suited for light-duty precision assemblies where small-diameter fasteners are required, such as securing collars, pulleys, gears, or knobs onto shafts. The fine 0-80 UNF thread pitch allows controlled tightening in tapped holes found in instrument hardware, small mechanical assemblies, and electrical component mounting. A minimum order quantity of 10 pieces applies, making it appropriate for shop stock or assembly line use rather than single-piece repair.

Key Features

• Cup point geometry bites into shaft surfaces to prevent rotation and axial slip
• Grade 8 alloy steel construction provides high clamping strength relative to fastener size
• 0-80 UNF fine thread for precise engagement in tapped holes
• 0.028-inch hex key drive for torquing in confined spaces
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and material standards
• Fractional inch measurement type with 5/16-inch overall length

Compatibility

Designed as an OEM-style replacement or stock fastener for any tapped 0-80 UNF threaded hole requiring a cup point set screw per ASME/ANSI B18.3 specifications.

Installation Notes

Installation is typically performed by machinists or precision assembly technicians using a 0.028-inch hex key driver. Ensure the mating tapped hole is clean and free of debris before threading to avoid cross-threading the fine 0-80 UNF pitch. Do not exceed appropriate hand-tight seating force for this fastener size, as over-torquing small-diameter alloy set screws can shear the hex socket. Follow applicable ASME standards and shop procedures for fastener torque and locking requirements in the specific assembly.