Value Collection 583647PR 1/4-20 X 1-1/2 in Round Head Slotted Screw

Product Description

The VALUE COLLECTION 583647PR is a 1/4-20 unified coarse thread (UNC) machine screw with a round head and slotted drive, manufactured from alloy steel with a zinc finish. It measures 1-1/2 inches in length under the head and is sold without a washer. This fastener is designed for general mechanical and structural assembly applications where a slotted round head profile is required. The zinc coating provides basic corrosion resistance in dry or mildly humid environments. Installers across mechanical, electrical, and light structural trades will find this screw suitable for panel mounting, equipment assembly, and fixture attachment tasks.

This screw is suited for use in residential and commercial applications wherever a 1/4-20 UNC threaded fastener is called for. Common installation scenarios include mounting electrical panels, equipment enclosures, HVAC components, and general metal-to-metal or metal-to-wood assemblies. The round head profile sits flush against the mating surface and distributes clamping load evenly. This SKU is sold as a single package with a minimum order quantity of 100 pieces, making it appropriate for contractors and technicians stocking hardware for ongoing service or installation work.

Key Features

• 1/4-20 UNC thread provides broad compatibility with standard tapped holes and nuts
• 1-1/2 inch length under head suits medium-depth fastening applications
• Round head profile distributes load evenly across the mating surface
• Slotted drive accepts standard flathead screwdrivers and slotted bits
• Alloy steel construction offers strength for mechanical assembly use
• Zinc finish provides basic corrosion protection in dry environments

Compatibility

Designed as a standard 1/4-20 UNC machine screw suitable for use with any tapped hole, nut, or threaded insert conforming to the 1/4-20 unified coarse thread standard in the inch measurement system.

Installation Notes

Install using a flathead screwdriver or slotted bit driver sized to match the head recess. Ensure the mating thread or nut is clean and undamaged before assembly. Do not overtighten, as alloy steel screws at this diameter can shear or strip the mating thread if excessive torque is applied. Follow applicable mechanical codes and equipment manufacturer guidelines for fastener torque requirements on the specific application.