Value Collection 409156BR Set Screw Cup Point Steel Grade 2

Product Description

The VALUE COLLECTION 409156BR is a heavy-duty set screw designed for secure, positive fastening in mechanical assemblies where a protruding head is not acceptable. The cup point bites into the mating shaft or surface to resist rotation and axial movement without requiring a bolt head. This screw measures 1-8 inches in diameter by 6 inches in length, follows Unified National Coarse thread standards, and is manufactured from Grade 2 steel with a bright uncoated finish. It is installed using a square drive and is sized for high-load industrial and trade applications. Machinists, maintenance technicians, and mechanical contractors are the typical installers.

This set screw is suited for use in shaft collars, shaft couplings, gears, pulleys, and other rotating or sliding components found in industrial machinery, HVAC mechanical drives, pump assemblies, and general fabrication work. The 6-inch length and 1-8 coarse thread make it appropriate for thick hub stock or deep blind-hole applications where standard-length set screws cannot provide sufficient engagement depth.

Key Features

• Cup point geometry grips shaft material and resists rotation under load
• Square drive recess provides high torque transfer with a standard square key or bit
• Grade 2 steel construction suitable for general-purpose mechanical fastening
• Bright uncoated finish for use in dry or lightly oiled environments
• UNC thread standard ensures broad compatibility with standard tapped holes
• Headless profile allows full countersinking flush with or below the hub surface

Compatibility

Designed as an OEM-style replacement or maintenance stock fastener for any 1-8 UNC tapped hole requiring a cup-point set screw with 6-inch engagement length.

Installation Notes

Set screws of this type are installed by licensed machinists or qualified maintenance technicians using a correctly sized square drive key or power bit. De-energize and lock out all rotating equipment before removing or installing set screws in shaft assemblies. Do not overtighten into soft shaft materials without a hardened insert, as the cup point will deform the shaft surface permanently. Follow applicable ANSI and facility safety standards for shaft and coupling work.