Value Collection 704379PR Set Screw 1/4-20 X 1 in Cone Point

Product Description

The VALUE COLLECTION 704379PR is a 1/4-20 x 1-inch cone point set screw manufactured from austenitic Grade A2 stainless steel. Set screws are fully threaded fasteners with no head, designed to lock or position a component — such as a collar, pulley, or gear — against a shaft. The cone point tip digs into the mating surface for a secure, positive hold. Driven by a 1/8-inch hex key, this fastener meets ASME/ANSI B18.3 and ASTM F880 dimensional and material standards. Maintenance technicians, millwrights, and mechanical contractors use set screws like this in assemblies where a flush or recessed fastener is required.

This set screw is suited for light-to-medium duty mechanical assemblies across commercial and industrial applications. The UNC 1/4-20 thread is a widely used coarse-thread standard, making this fastener compatible with common tapped holes found in shaft collars, couplings, sprockets, and similar components. Austenitic Grade A2 stainless steel offers good corrosion resistance, making this fastener appropriate for environments with moisture exposure or mild chemical contact. This is a single-piece (Pkg Qty = 1) item with a minimum order quantity of 10 pieces.

Key Features

• Cone point tip provides a positive bite into mating shaft or surface for secure locking
• 1/4-20 UNC coarse thread for broad compatibility with standard tapped holes
• 1-inch overall length accommodates typical shaft collar and coupling applications
• 1/8-inch hex drive accepts standard hex keys and hex-bit drivers
• Austenitic Grade A2 stainless steel for corrosion resistance in damp or mildly corrosive environments
• Meets ASME/ANSI B18.3 and ASTM F880 standards for dimensional accuracy and material compliance

Compatibility

Designed as a standard 1/4-20 UNC cone point set screw for use in any tapped hole conforming to ASME/ANSI B18.3 specifications. Typical fitment includes shaft collars, couplings, pulleys, sprockets, and similar mechanical assemblies requiring a headless locking fastener.

Installation Notes

Installation is performed with a 1/8-inch hex key or equivalent hex-bit driver. Always de-energize and lock out any rotating machinery before servicing assemblies that use set screws. Do not overtighten — snug to firm engagement is sufficient for most collar and hub applications; consult the equipment manufacturer for torque guidance. Inspect the mating shaft surface for burrs or damage before installation to ensure proper seating of the cone point.