Value Collection 409046PR Set Screw 1/4-20 X 3/4 in Cup Point

Product Description

The VALUE COLLECTION 409046PR is a 1/4-20 x 3/4 inch cup point set screw manufactured from Grade 2 steel with a bright uncoated finish. Set screws are headless fasteners used to secure a component — such as a collar, gear, or pulley — onto a shaft by applying direct point pressure. This screw uses a square drive and a cup point tip, which bites into the mating surface to resist rotation and axial movement. It threads to the Unified National Coarse (UNC) standard and is measured by length under head. This fastener is suited for general mechanical assembly work performed by maintenance technicians, machinists, and trade professionals.

The 409046PR is appropriate for light-duty to moderate mechanical assemblies where a standard Grade 2 steel set screw meets the load and torque requirements. Cup point set screws are widely used in HVAC blower wheel hubs, motor shaft collars, and general industrial and commercial mechanical assemblies. The uncoated finish makes this screw suitable for dry or lightly oiled indoor environments. This SKU is sold in minimum order quantities of 100 pieces, making it practical for stocking in a service van or shop inventory.

Key Features

• 1/4-20 UNC thread for broad compatibility with standard tapped holes
• 3/4 inch length measured under head for precise depth control
• Cup point tip engages shaft surface to resist rotation and pull-out
• Square drive socket for positive torque transfer with a square key wrench
• Grade 2 steel construction suitable for general-duty mechanical fastening
• Bright uncoated finish; no added plating or coating that could affect dimensional tolerance

Compatibility

Designed as a general-purpose UNC set screw for standard 1/4-20 tapped holes in mechanical assemblies requiring a cup point headless fastener.

Installation Notes

Install with the appropriately sized square drive key wrench; use of an incorrect drive tool can round the socket and damage the fastener. Ensure the mating shaft or component surface is clean and free of debris before tightening to allow the cup point to seat properly. Follow applicable machinery or equipment manufacturer torque guidelines where specified. Minimum order quantity is 100 pieces per purchase.