Value Collection 121115PR Set Screw 1/4-20 X 5/8 in Cone Point

Product Description

The VALUE COLLECTION 121115PR is a 1/4-20 cone point set screw machined from Grade 8 alloy steel. Set screws are headless fasteners used to secure a component — such as a collar, pulley, or gear — against a shaft or within a threaded bore. The cone point digs into the mating surface to provide a strong, resistant grip under load. This screw measures 5/8 inches in overall length and accepts a 1/8-inch hex key for installation. It meets ASME/ANSI B18.3 and ASTM F912 standards, confirming dimensional and mechanical conformance. Grade 8 alloy steel provides high tensile and torsional strength suited for demanding mechanical assemblies.

This set screw is used across a wide range of industrial and mechanical applications including HVAC equipment assemblies, pump and motor shaft retention, conveyor components, and general machinery. The 1/4-20 UNC thread is one of the most common thread sizes in North American mechanical assembly, making this fastener a frequent replacement or service item for maintenance technicians and assemblers working on rotating equipment and mechanical drives.

Key Features

• Cone point geometry digs into the shaft surface for strong axial and rotational holding force
• Grade 8 alloy steel construction provides high tensile strength for heavy-load applications
• 1/4-20 UNC thread — one of the most common fractional thread sizes in North American assemblies
• 5/8-inch overall length suits medium-depth threaded bores
• 1/8-inch hex key drive for installation with standard Allen wrenches
• Manufactured to ASME/ANSI B18.3 and ASTM F912 standards for dimensional and mechanical compliance

Compatibility

Designed as a standard 1/4-20 UNC cone point set screw conforming to ASME/ANSI B18.3 and ASTM F912. Suitable for any threaded bore or collar accepting a 1/4-20 UNC headless set screw of 5/8-inch length.

Installation Notes

Installation requires a 1/8-inch hex key or Allen wrench. Ensure the mating shaft or bore is clean and free of debris before threading the screw. Do not exceed the rated torque capacity of the alloy steel screw by using extension tools or impact drivers. Follow applicable machinery safety lockout/tagout procedures before servicing any rotating equipment.