Value Collection 583623PR 1/4-20 X 3/4 in Round Head Slotted Screw

Product Description

The VALUE COLLECTION 583623PR is a 1/4-20 unified coarse thread (UNC) machine screw with a round head and slotted drive, measuring 3/4 inches in length under head. Constructed from alloy steel with a zinc finish for basic corrosion resistance, this fastener is suited for general mechanical assembly, enclosure mounting, and equipment fabrication. The slotted drive accepts a standard flat-blade screwdriver, making it a straightforward choice when speed and simplicity are priorities over torque transfer. It ships in a minimum order quantity of 100 pieces per package.

This machine screw is used across a broad range of trade and light industrial applications including HVAC equipment panels, electrical enclosures, plumbing fixtures, and general metal-to-metal fastening. The 1/4-20 UNC thread form is one of the most common inch-series thread standards in North American mechanical assembly, ensuring wide tap and nut compatibility. The round head profile sits above the work surface and does not require a countersunk or counterbored hole, making it suitable for through-hole and tapped-hole installations where head clearance is not a concern.

Key Features

• 1/4-20 UNC thread for broad compatibility with standard inch-series tapped holes and nuts
• 3/4 inch length under head for consistent clamping depth in standard panel and bracket applications
• Alloy steel construction provides strength suitable for mechanical assembly loads
• Zinc finish offers basic corrosion resistance in dry or mildly humid indoor environments
• Round head with slotted drive accepts flat-blade screwdrivers and standard slot bits
• No washer — head seats directly against work surface for clean, low-profile installations

Compatibility

Designed as a standard inch-series machine screw compatible with any 1/4-20 UNC tapped hole or hex nut in residential and light commercial mechanical, electrical, and HVAC applications.

Installation Notes

Installation requires a flat-blade screwdriver or slotted bit driver sized for a 1/4-inch round head screw. Ensure the mating tapped hole or nut is clean and free of debris before threading. Do not overtighten — alloy steel fasteners in this size range are susceptible to thread stripping in softer base materials such as aluminum or plastic. Follow applicable equipment manufacturer torque guidelines where specified.