Value Collection 580623PR 1/4-20 X 3/4 in Flat Head Screw

Product Description

The VALUE COLLECTION 580623PR is a 1/4-20 flat head slotted machine screw designed for general fastening applications in metalworking, HVAC equipment assembly, electrical enclosures, and light structural work. Manufactured from Grade 2 steel with a zinc finish for basic corrosion resistance, this screw measures 3/4 inches in overall length with a full 3/4 inches of length under the head. The 1/4-20 UNC thread is one of the most common inch-series thread sizes in trade work, making it compatible with a wide range of tapped holes, hex nuts, and threaded inserts. Sold in a minimum order quantity of 100 pieces per purchase.

This fastener is suited for residential and light commercial applications where a flush or countersunk finish is required. The flat head profile seats into countersunk holes to sit flush with or below the mating surface, making it appropriate for panel assembly, equipment covers, junction box installation, and general mechanical fastening. The slotted drive accepts a standard flat-blade screwdriver. Trades that commonly use this fastener include HVAC technicians, electricians, plumbers, and general maintenance professionals working with pre-tapped components or standard hex nuts.

Key Features

• 1/4-20 UNC thread for wide compatibility with standard tapped holes and nuts
• Flat head profile for flush or countersunk installation
• Slotted drive accommodates standard flat-blade screwdrivers
• Grade 2 steel construction provides adequate strength for light to medium-duty fastening
• Zinc finish provides basic corrosion resistance for indoor and protected environments
• Sold in multiples of 100 for job-site and service-truck stocking

Compatibility

Designed as a standard inch-series machine screw for use with 1/4-20 UNC tapped holes, nuts, and threaded inserts in general trade and mechanical assembly applications.

Installation Notes

Install using a flat-blade screwdriver sized to the slot width. Ensure the mating hole is tapped or threaded to 1/4-20 UNC specification before driving. Do not overtighten Grade 2 fasteners in thin sheet metal or soft base materials, as the threads may strip. De-energize electrical equipment and shut off mechanical systems before performing any fastener work on live panels or operating equipment.