Enhance fastening efficiency with this Fillister Head Machine Screw. Featuring a durable steel construction with a zinc finish coating, it offers reliable strength and corrosion resistance. Designed to ASME B18.6.3 specifications, it guarantees quality and precision. The 4-40 thread size and slotted drive type allow for easy installation, while the .4375 inch length makes it suitable for various applications. With RoHS compliance, it ensures environmental responsibility. Upgrade your hardware with this versatile and dependable screw.