Value Collection 580615PR 1/4-20 X 1/2 in Flat Head Slotted Screw

Product Description

The VALUE COLLECTION 580615PR is a 1/4-20 x 1/2 inch overall length flat head machine screw designed for general fastening applications across a wide range of trades and industries. It features a slotted drive, Grade 2 steel construction, and a zinc finish for basic corrosion resistance. The flat head profile sits flush with or countersinks into the mating material, making it well suited for panels, brackets, enclosures, and equipment assemblies where a low-profile fastener is required. This screw uses Unified National Coarse (UNC) threading and is sold in a minimum order quantity of 100 units per package.

This machine screw is appropriate for light-duty mechanical and electrical assembly work including junction box installations, equipment mounting, panel fabrication, and general maintenance tasks. Electricians, HVAC technicians, and plumbers commonly use fasteners of this type when securing access covers, control board brackets, and sheet metal assemblies. The zinc finish provides adequate protection in dry indoor environments. This size is a standard fit for pre-tapped 1/4-20 holes found on a broad range of commercial and residential equipment components.

Key Features

• 1/4-20 UNC thread for compatibility with standard tapped holes
• Flat head profile allows flush or countersunk installation
• Slotted drive works with standard flathead screwdrivers
• Grade 2 steel construction suitable for light-duty fastening
• Zinc finish provides basic indoor corrosion resistance
• Sold in multiples of 100 units per order

Compatibility

Designed as a standard 1/4-20 UNC flat head machine screw for use in any application requiring a countersunk or flush-mount fastener in a pre-tapped or clearance-drilled 1/4-20 hole.

Installation Notes

Install using a standard flathead screwdriver or slotted bit driver. Ensure the mating hole is properly tapped to 1/4-20 UNC specification before driving. De-energize any electrical equipment and follow applicable NEC guidelines before fastening components inside panels or enclosures. Do not overtighten Grade 2 fasteners in soft or thin materials, as the lower tensile strength compared to higher-grade hardware increases the risk of thread stripping.