Value Collection 583691PR Machine Screw 1/4-20 X 5 in

Product Description

The VALUE COLLECTION 583691PR is a 1/4-20 UNC machine screw with a round head and slotted drive, manufactured from alloy steel with a zinc finish. It measures 5 inches in length under the head, making it suited for deeper fastening applications where standard-length screws fall short. The zinc finish provides basic corrosion resistance for general service environments. This fastener is installed by maintenance technicians, millwrights, and trade professionals working on mechanical assemblies, enclosures, brackets, and equipment mounting. It ships in multiples of 100.

This screw is a general-purpose inch-series fastener for applications that call for a 1/4-20 UNC thread profile with a round head and slotted drive. Typical use cases include fastening sheet metal panels, electrical enclosures, HVAC equipment brackets, and light structural assemblies. The slotted drive is compatible with standard flat-blade screwdrivers and slotted power bits. The round head sits above the mating surface and is appropriate where a low-profile dome head is acceptable and countersinking is not required.

Key Features

• 1/4-20 UNC thread - standard inch-series coarse thread for broad hardware compatibility
• 5-inch length under head - suits deep-reach or stacked-material fastening
• Round head profile - dome sits proud of the surface, no countersink required
• Slotted drive - compatible with flat-blade screwdrivers and standard slotted bits
• Alloy steel construction - higher tensile strength than low-carbon steel fasteners
• Zinc finish - basic corrosion resistance for indoor and light-duty service environments

Compatibility

Designed as an OEM-style replacement or general-use fastener for any mechanical assembly, equipment enclosure, or structural bracket requiring a 1/4-20 UNC round head slotted machine screw.

Installation Notes

Installation requires a properly sized flat-blade screwdriver or slotted power bit to avoid cam-out and head damage. Always verify the mating material is tapped or nutted to 1/4-20 UNC specification before driving the screw. De-energize any electrical equipment and shut off power before fastening components inside or adjacent to live panels. Follow applicable ANSI and NEC guidelines for fastener use in electrical enclosure assemblies.