Value Collection 101167PR Set Screw 6-40 X 1/8 in Cup Point

Product Description

The VALUE COLLECTION 101167PR is a cup point set screw designed for secure, flush fastening in mechanical assemblies where a protruding head is not practical. Threaded 6-40 UNF with an overall length of 1/8 inch, this screw is driven by a 1/16 inch hex key. Manufactured from Grade 8 alloy steel, it meets ASME/ANSI B18.3 and ASTM F912 standards. The cup point geometry bites into the mating surface to resist rotation and axial movement, making it well suited for locking shafts, collars, and pulleys in position under load.

This set screw is used in light mechanical, motion control, and precision assembly applications where a fine unified thread pitch and compact length are required. Typical installations include set-screw hubs, shaft collars, gear assemblies, and small-bore rotating components. The 6-40 UNF thread provides finer pitch engagement than a coarse-thread alternative, which is useful in thin-walled or close-tolerance housings. Machinists, millwrights, and mechanical assemblers commonly specify this size in industrial and OEM production environments.

Key Features

• 6-40 UNF thread for fine-pitch engagement in close-tolerance applications
• Cup point geometry bites into shaft or mating surface to resist rotation and axial movement
• Grade 8 alloy steel construction for high tensile and torsional strength
• 1/16 inch hex drive accepts standard hex keys and hex-bit drivers
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and material standards
• Headless design sits fully flush or below surface when installed

Compatibility

Designed as a standard 6-40 UNF cup point set screw conforming to ASME/ANSI B18.3 and ASTM F912, suitable for use in any application requiring a headless hex-drive fastener of this thread size and length.

Installation Notes

Installation is performed with a 1/16 inch hex key or T-handle hex driver. De-energize and lock out any machinery before servicing fasteners on rotating components. Do not exceed the rated torque range for the 6-40 thread size and Grade 8 alloy steel specification as defined by the applicable ASME standard. Inspect the seating surface and threads for burrs or contamination before installation to ensure full cup point contact.