Value Collection 586679PR Flat Head Phillips Machine Screw

Product Description

The VALUE COLLECTION 586679PR is a 1/4-20 flat head Phillips machine screw with a 3-inch overall length, designed for general-purpose fastening in metal, plastic, and composite assemblies. Manufactured from Grade 2 steel with a zinc finish for basic corrosion resistance, this screw features a countersunk flat head profile that sits flush with the mating surface when properly installed. The UNC (Unified National Coarse) thread form provides reliable engagement in standard tapped holes. These screws are a staple for mechanical contractors, industrial maintenance technicians, and experienced tradespeople working with threaded assemblies across a wide range of applications.

This fastener is suited for light- to medium-duty mechanical assemblies in residential and commercial settings. The flat head design makes it appropriate for installations where a flush or countersunk finish is required. The Phillips drive is compatible with standard power and hand screwdrivers commonly used in the field. Typical applications include panel mounting, equipment enclosures, brackets, and general structural fastening where a 1/4-20 coarse-thread pattern is specified. This SKU is sold as a single package with a minimum order quantity of 100 pieces.

Key Features

• 1/4-20 UNC coarse thread for broad compatibility with standard tapped holes
• 3-inch overall length with full threading under head
• Flat countersunk head profile seats flush with the work surface
• Phillips drive accommodates standard power and manual screwdrivers
• Grade 2 steel construction with zinc finish for general-duty use
• No washer — suitable for direct countersunk seating

Compatibility

Designed as a general-purpose 1/4-20 UNC machine screw for use in any application requiring a flat head Phillips fastener in that thread size and 3-inch overall length.

Installation Notes

Installation should be performed by a qualified mechanic or technician familiar with threaded fastener assemblies. Ensure the mating hole is properly tapped or threaded to 1/4-20 UNC specification before driving the screw. Use a correctly sized Phillips screwdriver or bit to avoid cam-out and head damage. Do not exceed the rated capacity of Grade 2 fasteners in high-stress or safety-critical structural applications.