Value Collection 94586 1/4-20 X 1/2 in Flat Head Phillips Screw

Product Description

The VALUE COLLECTION 94586 is a 1/4-20 x 1/2 inch flat head Phillips machine screw manufactured from 18-8 stainless steel with a bright, uncoated finish. This fastener uses Unified National Coarse (UNC) thread and measures 1/2 inch in overall length. The flat head profile sits flush with or below the mating surface when fully driven, making it well suited for applications where a low-profile or countersunk finish is required. Machinists, maintenance technicians, electricians, and general contractors routinely specify 18-8 stainless for its corrosion resistance in both indoor and outdoor environments. The Phillips drive is compatible with standard Phillips bits and screwdrivers.

This screw is used in light to medium fastening applications across HVAC equipment panels, electrical enclosures, plumbing fixture assemblies, pool equipment housings, and general fabrication work. The 1/4-20 thread size is one of the most common inch-series thread specifications in trade and industrial settings. The 18-8 stainless steel construction makes it a reliable choice in humid or wet environments where carbon steel fasteners would corrode. Sold as a single piece with a minimum order quantity of 50 units.

Key Features

• 1/4-20 UNC thread for broad compatibility with standard tapped holes and hex nuts
• Flat head profile countersinks flush for a clean, low-profile installation
• Phillips drive accepts standard No. 2 Phillips bits and screwdrivers
• 18-8 stainless steel construction resists corrosion in wet and humid environments
• Bright, uncoated finish — no plating to chip or flake over time
• Overall length of 1/2 inch equals length under head — no shoulder or partial thread

Compatibility

Designed as a standard 1/4-20 UNC inch-series machine screw suitable for use with any tapped hole, threaded insert, or nut conforming to 1/4-20 UNC specifications.

Installation Notes

Install using a No. 2 Phillips screwdriver or bit driver. For flush or countersunk installations, ensure the mating material is properly countersunk to match the flat head angle before driving the screw. De-energize electrical panels and shut off equipment before replacing fasteners on live assemblies. Do not overtighten stainless steel fasteners into stainless tapped holes without anti-seize compound, as galling can occur.