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The VALUE COLLECTION R50000287 is a 1/4-20 x 1 inch flat head Phillips machine screw designed for general fastening applications in metal, wood, and composite assemblies. Made from Grade 2 steel with a zinc plating finish, this screw delivers reliable corrosion resistance for light-duty to medium-duty installations. The flat head profile sits flush with or below the surface when driven into a countersunk hole, making it well-suited for applications where a clean, low-profile finish is required. Sold in a minimum order quantity of 100 pieces, this screw follows Unified National Coarse (UNC) thread standards at 20 threads per inch.
This screw is commonly used in light structural, mechanical, and equipment assembly work across HVAC, electrical, plumbing, and general trade applications. The Phillips drive is compatible with standard Phillips screwdrivers and bit drivers, making installation straightforward in production or field environments. The 1/4-20 UNC thread is a widely used standard size that mates with commonly available nuts, inserts, and tapped components. Overall length is measured as 1 inch, with 1 inch of length under the head, indicating full thread engagement from the bearing surface.
Designed as a standard 1/4-20 UNC flat head Phillips machine screw suitable for use with any component, enclosure, or assembly that accepts a 1/4-20 threaded fastener with a countersunk flat head seating surface.
Installation requires a countersunk hole sized for a 1/4-20 flat head screw to allow the head to seat flush. Use a Phillips screwdriver or appropriate power driver bit and avoid over-torquing, which can strip the drive or damage the mating threads. When fastening into tapped metal components, ensure thread engagement meets application requirements. Follow applicable mechanical codes and manufacturer guidelines for the assembly being serviced.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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