Value Collection 101307PR Set Screw 1/4-20 X 3/16 in Cup Point

Product Description

The VALUE COLLECTION 101307PR is a 1/4-20 cup point set screw manufactured from Grade 8 alloy steel. Set screws are fully threaded fasteners with no head, designed to secure a component — such as a collar, gear, or pulley — onto a shaft by bearing down with the point against the mating surface. The cup point configuration creates a small indentation in the shaft for positive grip and resistance to rotation or axial movement. This screw is driven with a 1/8 inch hex key and measures 3/16 inches in overall length. It meets ASME/ANSI B18.3 and ASTM F912 standards. Machinists, millwrights, and mechanical contractors install these fasteners in light industrial, HVAC, and mechanical assembly applications.

This set screw is suited for applications requiring a compact, low-profile fastener that sits flush or below the surface of the workpiece. The 1/4-20 UNC thread is a widely used coarse thread size across mechanical and HVAC equipment, making this screw a common replacement or production fastener in shaft collars, fan blade hubs, set collar assemblies, and similar components. The short 3/16 inch overall length is appropriate for thin-walled components or shallow engagement depths where a longer fastener would bottom out or interfere.

Key Features

• Cup point tip creates a positive indentation in the mating shaft for reliable holding force
• Grade 8 alloy steel construction provides high tensile and torsional strength
• 1/4-20 UNC thread for broad compatibility with standard tapped holes
• 1/8 inch hex drive for use with standard hex keys or Allen wrenches
• Meets ASME/ANSI B18.3 and ASTM F912 fastener standards
• 3/16 inch overall length suits shallow engagement or thin-walled assemblies

Compatibility

Designed as an OEM-style replacement or production fastener for any application using a 1/4-20 UNC threaded cup point set screw with a 1/8 inch hex drive and 3/16 inch overall length.

Installation Notes

Installation requires a 1/8 inch hex key or Allen wrench. Ensure the mating shaft and threaded hole are clean and free of debris before driving the screw. Torque to the fastener manufacturer's specification for the thread size and grade — refer to a standard fastener torque table rather than applying estimated force. Always de-energize or lock out any rotating equipment before installing or removing set screws on drive components.