Value Collection R52000305 Flat Head Machine Screw 1/4-20

Product Description

The VALUE COLLECTION R52000305 is a flat head slotted machine screw manufactured from brass and conforming to ASME B18.6.3. It features a 1/4-20 unified coarse thread with an overall length of 2 inches and a full 2-inch length under the head, meaning the thread runs the full shank. The flat head profile seats flush with or below the mating surface, making it well suited for applications where a smooth, unobstructed surface finish is required. This fastener is supplied in the inch measurement system and is sold in a minimum order quantity of 10 pieces.

This screw is used in light mechanical assemblies, electrical enclosures, panel fabrication, and general trade applications where a non-ferrous, corrosion-resistant fastener is preferred. Brass construction makes it appropriate for use in environments where galvanic compatibility with copper or aluminum components is a consideration, or where a non-magnetic fastener is required. HVAC technicians, electricians, and plumbers commonly use brass machine screws when fastening components in wet or corrosive service environments.

Key Features

• Brass construction for corrosion resistance and galvanic compatibility with copper and aluminum
• Flat head profile allows flush or countersunk installation
• Slotted drive compatible with standard flat-blade screwdrivers
• 1/4-20 UNC thread for broad hardware compatibility
• Full 2-inch length under the head with no reduced shank
• Conforms to ASME B18.6.3 dimensional standard

Compatibility

Designed as a standard 1/4-20 x 2-inch flat head slotted machine screw per ASME B18.6.3, compatible with any tapped hole or nut conforming to 1/4-20 UNC thread specifications.

Installation Notes

Install using a flat-blade screwdriver sized to the slot width to avoid cam-out and head damage. A properly sized countersink in the mating material ensures full flat head seating and flush surface finish. Avoid over-torquing brass fasteners, as the material is softer than steel and susceptible to thread stripping. Ensure the mating thread is clean and free of debris before installation.