M3.5 Slotted Flat Tapping

DIN 7972 Slotted Countersunk (Flat) Head Tapping Screws Form C – A2 Stainless Steel

DIN 7972 Form C tapping screws are self-tapping fasteners designed to create mating threads in pre-drilled holes within sheet metal, plastics, and other suitable materials. The countersunk (flat) head allows the screw to sit flush with the surface after installation, creating a smooth and unobtrusive finish. The slotted drive enables installation using a standard flat-blade screwdriver, while the Form C blunt point is intended for use in prepared holes where thread forming is required without piercing action. These screws are sized by their thread diameter and overall length, measured from the top of the head to the tip.

Material

Manufactured from A2 stainless steel, these tapping screws provide excellent corrosion resistance along with dependable mechanical strength. A2 stainless steel performs well in humid and mildly corrosive environments, making it suitable for both indoor and outdoor applications. The natural stainless finish resists rust and staining while maintaining a clean, professional appearance and long-term durability without requiring additional surface coatings.

Use

DIN 7972 slotted flat head tapping screws Form C are commonly used in sheet metal fabrication, electrical equipment, appliance manufacturing, ventilation systems, and general industrial assemblies. Their self-tapping design eliminates the need for separate tapping operations, helping reduce assembly time and simplify installation. The flush countersunk head and corrosion-resistant stainless construction make these screws a dependable choice for OEM manufacturing, maintenance applications, and fastening tasks where a smooth finished surface is required.

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