Value Collection C52000659 4-40 X 3/4 in Round Head Phillips Screw

Product Description

The VALUE COLLECTION C52000659 is a 4-40 x 3/4 inch round head Phillips machine screw manufactured from 18-8 stainless steel with a bright, uncoated finish. The 4-40 designation indicates a number 4 diameter with 40 threads per inch in the Unified National Coarse (UNC) thread form. Length is measured under the head at 3/4 inches. These screws are suited for light-duty fastening applications where corrosion resistance is required. The 18-8 stainless steel alloy provides resistance to rust and oxidation in both indoor and moderate outdoor environments. This package contains 50 pieces, making it practical for bench stock or small-batch assembly work performed by electricians, HVAC technicians, panel builders, and general trade professionals.

These machine screws are commonly used in electrical enclosures, control panels, HVAC equipment covers, and light-duty mechanical assemblies where a small-diameter corrosion-resistant fastener is specified. The Phillips drive is compatible with standard and power screwdrivers used in everyday trade applications. The round head profile sits above the mating surface and provides a broad bearing area without requiring a countersunk hole. Sold in a 50-piece package, this fastener is suitable for stocking in field service kits or shop inventory.

Key Features

• 4-40 UNC thread form at 40 threads per inch for fine thread engagement in thin or soft materials
• 3/4 inch length measured under head for consistent installation depth
• 18-8 stainless steel construction resists rust and corrosion
• Bright uncoated finish maintains dimensional accuracy and clean appearance
• Round head Phillips drive compatible with standard #1 or #2 Phillips bits
• 50-piece package suits bench stock, field kits, and small assembly runs

Compatibility

Designed as a standard 4-40 UNC machine screw for use in any application requiring a number 4 diameter, 40 threads-per-inch fastener with a round head Phillips drive in inch-measurement systems.

Installation Notes

Installation does not require special licensing but should be performed by personnel familiar with fastener torque requirements for the mating material. Always power down electrical equipment before accessing enclosures or panels where these screws are used. Use a properly sized Phillips bit to avoid stripping the drive recess. Do not exceed the rated torque for the mating thread material, particularly when threading into aluminum or plastic standoffs.