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DIN 963 Slotted Countersunk (Flat) Head Screw – Steel Class 4.8, Zinc Plated
DIN 963 screws are metric countersunk (flat) head machine screws designed to sit flush with the surface once installed. The 90° countersunk head allows the fastener to be installed level with the surrounding material, creating a smooth and unobtrusive finish. The traditional slotted drive offers a simple and widely recognized fastening method suitable for manual installation with standard flat-blade screwdrivers.
Material
Manufactured from steel class 4.8, these screws provide reliable strength for general-purpose fastening applications. Class 4.8 steel offers moderate tensile strength suitable for light-duty mechanical assemblies. The zinc plated finish provides corrosion protection by creating a protective barrier against oxidation, helping extend service life in indoor environments and applications exposed to light moisture.
Use
DIN 963 zinc plated slotted flat head screws are widely used for general machine assembly, electrical equipment, sheet metal fastening, furniture construction, and maintenance repair applications. Their flush countersunk head makes them ideal for installations where a smooth surface is required, while the metric machine thread ensures compatibility with tapped holes, nuts, and standard metric hardware systems.
These screws are a common choice in industrial equipment, commercial installations, OEM manufacturing, and workshop repair environments where dependable metric fasteners are required.
