Value Collection 121097PR Set Screw 1/4-20 X 5/16 in Cone Point

Product Description

The VALUE COLLECTION 121097PR is a 1/4-20 cone point set screw used to secure components onto shafts, rods, or housings without a protruding head. Manufactured from Grade 8 alloy steel, this fastener delivers high tensile strength and hardness suitable for demanding mechanical assemblies. The cone point geometry bites into the mating surface to resist rotation and axial movement under load. Drive is a 1/8-inch hex socket (Allen key). This screw meets ASME/ANSI B18.3 and ASTM F912 standards and is installed by machinists, millwrights, and maintenance technicians across industrial and mechanical service applications.

The 121097PR is sized at 1/4-20 UNC thread with an overall length of 5/16 inches, making it appropriate for light-to-medium clamping applications where a flush or below-surface seating fastener is required. Common use cases include shaft collars, pulleys, sprockets, couplings, and similar rotating or sliding mechanical components in industrial equipment, HVAC drive assemblies, and general machinery maintenance.

Key Features

• Cone point tip provides concentrated clamping force and resists loosening under vibration
• Grade 8 alloy steel construction offers high hardness and tensile strength
• 1/4-20 UNC thread for broad compatibility with standard tapped holes
• 1/8-inch hex socket drive accepts standard Allen key or hex bit
• Headless design seats flush or below the workpiece surface
• Meets ASME/ANSI B18.3 and ASTM F912 dimensional and material standards

Compatibility

Designed as an OEM-style replacement or standard-stock set screw for any application requiring a 1/4-20 UNC cone point set screw with a 5/16-inch overall length and 1/8-inch hex drive.

Installation Notes

Installation is performed with a 1/8-inch hex key or Allen-style driver; ensure the driver seats fully to avoid rounding the socket. Always de-energize and lock out any equipment before accessing rotating shafts or moving components. Tighten to the assembly specification for the mating material and do not over-torque alloy steel set screws into soft materials such as aluminum or brass. Minimum order quantity is 100 pieces per order.