Value Collection R40344414 Set Screw 4-40 X 3/16 in Cup Point

Product Description

The VALUE COLLECTION R40344414 is a cup point set screw designed for secure, low-profile fastening in mechanical assemblies. Threaded 4-40 UNC with an overall length of 3/16 inches, it uses a hex drive for reliable torque transfer without a protruding head. Manufactured from Grade 18-8 stainless steel, this fastener resists corrosion in moderate-exposure environments. The cup point bites into the mating shaft or surface, providing positive holding force against rotation and axial movement. This type of fastener is installed by machinists, maintenance technicians, and assemblers working on shafts, collars, pulleys, and similar small mechanical components.

This set screw is suited for light-duty mechanical applications where a headless, flush fastener is required. Common uses include securing shaft collars, set-position stops, and small rotating components in HVAC equipment, pumps, and general machinery. The 4-40 thread size is a standard fine-thread designation appropriate for thin-walled housings and small-diameter shafts. The 18-8 stainless steel construction makes it a reliable choice in applications with exposure to moisture, mild chemicals, or environments where carbon steel fasteners would corrode prematurely.

Key Features

• Cup point geometry provides a positive bite into mating shaft material for axial and rotational retention
• Grade 18-8 stainless steel construction for corrosion resistance in moderate-exposure environments
• 4-40 UNC threading for compatibility with standard tapped holes in small mechanical components
• Hex drive socket accepts a 0.050-inch hex key for installation in tight or recessed locations
• Headless design sits flush or below the surface, eliminating snagging hazards in rotating assemblies
• Overall length of 3/16 inches suits thin-walled collars and shallow engagement depths

Compatibility

Designed as an OEM-style replacement or stock fastener for any mechanical assembly requiring a 4-40 UNC cup point set screw with an overall length of 3/16 inches.

Installation Notes

Install using a 0.050-inch hex key; do not substitute an incorrect key size, as this risks rounding the socket drive. Ensure the mating tapped hole is clean and free of debris before threading. Apply appropriate thread-locking compound if vibration resistance is required. Sold in minimum order quantities of 100 pieces.