Value Collection 409210PR Set Screw 9/16-12 X 2 in Cup Point

Product Description

The VALUE COLLECTION 409210PR is a 9/16-12 x 2-inch cup point set screw manufactured from Grade 2 alloy steel. Set screws are headless fasteners used to secure a component — such as a collar, gear, pulley, or hub — onto a shaft by bearing directly against the shaft surface. The cup point tip bites into the mating surface to resist rotation and axial movement. The square drive requires a square key wrench for installation and provides reliable torque transfer without rounding. This fastener is sized to UNC thread standard and is suited for medium-duty mechanical assemblies across industrial, HVAC, and general trade applications.

This set screw is used in applications where a flush or below-surface fastener is required, such as securing shaft collars, sprockets, and couplings in mechanical and industrial equipment. It is appropriate for residential and light commercial HVAC equipment, plumbing valve assemblies, and general mechanical maintenance. Professionals working in millwright, HVAC, plumbing, and facilities maintenance trades commonly install this type of fastener. The 9/16-12 thread size and 2-inch length suit it for medium-to-heavy duty holding applications where a standard hex socket style is not desired.

Key Features

• Cup point tip bites into shaft surface for positive hold against rotation and axial movement
• Square drive provides high torque capacity and reduces key slippage during installation
• Grade 2 alloy steel construction for strength in medium-duty mechanical service
• UNC thread standard (9/16-12) for broad compatibility with standard tapped holes
• Headless design sits flush or below surface, allowing full shaft travel clearance
• Length measured under head per standard fractional inch measurement convention

Compatibility

Designed as a standard UNC replacement or service set screw for mechanical assemblies using 9/16-12 tapped holes with a 2-inch length requirement. Confirm thread engagement depth and point type suitability before installation.

Installation Notes

A licensed mechanic, millwright, or qualified trade professional should install this fastener. Ensure the shaft and collar assembly are fully de-energized and stationary before installation. Use the correct square key wrench sized to the drive socket to avoid rounding the recess. Do not exceed the rated torque range for the thread size and material grade as specified in applicable fastener standards.