Value Collection 704371PR Set Screw 1/4-20 X 1/2 in Cone Point

Product Description

The VALUE COLLECTION 704371PR is a cone point set screw designed for secure, positive locking in mechanical assemblies where a fixed, biting contact point is required. Sized at 1/4-20 UNC thread by 1/2 inch overall length, it is driven with a 1/8 inch hex key. Manufactured from Austenitic Grade A2 stainless steel, this fastener offers corrosion resistance suitable for wet, outdoor, or chemically active environments. It conforms to ASME/ANSI B18.3 and ASTM F880 standards, making it appropriate for precision and industrial applications where dimensional and material traceability matter.

This set screw is used in shaft-to-hub assemblies, collars, pulleys, knobs, and similar mechanical components across HVAC equipment, plumbing fixtures, pump assemblies, and general industrial machinery. The cone point geometry bites into the mating surface to resist rotational and axial movement without requiring a through-hole. It is well suited for permanent or semi-permanent installations where vibration resistance is a priority. Installers in mechanical, HVAC, and industrial maintenance trades routinely use this type of fastener for collar positioning and set-point retention on rotating shafts.

Key Features

• Cone point tip bites into mating shaft surface for positive rotational and axial locking
• 1/4-20 UNC thread by 1/2 inch overall length for broad compatibility with standard collars and hubs
• Austenitic Grade A2 stainless steel construction provides corrosion resistance in wet and chemically active environments
• 1/8 inch hex key drive for installation with standard Allen wrenches or hex-bit drivers
• Conforms to ASME/ANSI B18.3 and ASTM F880 dimensional and material standards

Compatibility

Designed as a standard 1/4-20 UNC cone point set screw for use with any shaft collar, hub, pulley, or mechanical component tapped to accept a 1/4-20 threaded fastener per ASME/ANSI B18.3.

Installation Notes

Installation is performed with a 1/8 inch hex key or Allen-style driver; ensure the driver is fully seated before applying torque to avoid rounding the socket. De-energize and lock out any rotating equipment before installing or adjusting set screws on shafts or couplings. Verify thread engagement depth is sufficient for the application load before finalizing position. Follow applicable mechanical and equipment manufacturer guidelines for fastener seating in precision assemblies.