Value Collection 101395P Set Screw 5/16-18x1 Cup Point

Product Description

The VALUE COLLECTION 101395P is a cup point set screw designed for secure, permanent-style fastening in mechanical assemblies where a protruding head is not permitted. Sized at 5/16-18 UNC thread with a 1-inch overall length, this headless fastener seats flush with or below a surface and bites into the mating shaft or workpiece via its cup point tip. Driven with a 5/32-inch hex key, it meets ASME/ANSI B18.3 and ASTM F912 standards and is manufactured from Grade 8 alloy steel for high clamping load and hardness. Installation is straightforward for machinists, maintenance technicians, and mechanical contractors working with shafts, collars, and hubs.

This set screw is suited for use in industrial machinery, HVAC equipment drive assemblies, pump and motor shaft collars, gear hubs, and similar mechanical applications where a flush-mounted, high-strength fastener is required. The cup point geometry concentrates clamping force at a small contact area, making it effective for locking components on hardened or unhardened shafts. It is sold individually with a minimum order quantity of 100 pieces, making it appropriate for MRO stocking or production-line use.

Key Features

• Cup point tip concentrates clamping force for reliable shaft and collar retention
• Grade 8 alloy steel construction provides high tensile and torsional strength
• 5/16-18 UNC thread for compatibility with standard tapped holes
• 1-inch overall length for adequate thread engagement in deeper collars and hubs
• 5/32-inch hex drive for use with standard hex keys and L-wrenches
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and mechanical standards

Compatibility

Designed as a standard 5/16-18 UNC cup point set screw conforming to ASME/ANSI B18.3, suitable for any tapped receiving hole of the same thread specification in shaft collars, hubs, couplings, and similar mechanical components.

Installation Notes

Installation is performed by machinists or mechanical technicians using a 5/32-inch hex key or T-handle driver. De-energize and lock out all rotating equipment before installing or adjusting set screws. Thread the screw into the tapped hole by hand first to avoid cross-threading, then tighten with the hex key until the cup point seats firmly against the shaft. Do not use an impact driver on set screws, as this risks stripping the hex socket or damaging the thread.