Self-drilling screw pan head | A2 | DIN 7504N
This self-drilling screw with pan head is manufactured from high-quality A2 stainless steel, providing excellent corrosion resistance and durability. The self-drilling screws are made of A2 grade stainless steel, with a surface and core hardness of approximately 200 HV. The self-drilling capability and torsional resistance are comparable to those of stainless steel self-drilling screws (ISO 3506-4). These properties make them suitable only for drilling and self-tapping into softer materials such as aluminum, plasterboard, and plastic. For use in harder materials, such as sheet metal, self-drilling screws with a hardened tip, such as FZB self-drilling screws, are recommended.
AREA OF APPLICATION
The self-drilling screw is primarily used for fastening into aluminum, plastic, plasterboard, and wood. Its stainless steel construction makes it ideal for both indoor and outdoor use, where it resists weather and moisture. The pan head offers a rounded and aesthetic finish, which is advantageous for visible mountings.
TECHNICAL SPECIFICATIONS
Product type: Sheet metal screw
Standard: DIN 7504N
Grade: A2/AISI304
Hardness: approx. 200 HV (ISO 3506-4)
Head shape: Pan
Drive type: Phillips PH
FREQUENTLY ASKED QUESTIONS (FAQ)
What characterizes a self-drilling screw with pan head (DIN 7504 N)?
DIN 7504 N in A2 steel is a self-drilling screw with a pan head, designed for neat and aesthetically pleasing surface fastenings:
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Pan head: The rounded head with a flat underside provides a broad bearing surface. This distributes the clamping force evenly across the material and prevents the screw from pulling through thin or softer board materials.
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Drills and taps in one operation: The drill point cuts its own hole and forms the thread directly during insertion, which saves a significant amount of assembly time as pre-drilling is not required.
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Versatile mounting: Particularly suitable for mounting fittings, plastic components, profiles, and sheet metal onto softer substrates.
Which materials can A2 stainless steel self-drilling screws drill into?
Since these screws are made entirely of A2 stainless steel with a surface and core hardness of approximately 200 HV (corresponding to ISO 3506-4), they have specific areas of application:
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Suitable for softer materials: The screw's hardness makes it ideal for drilling and tapping into aluminum, plastic, plasterboard, and wood.
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Not intended for steel or iron sheet metal: Unlike hardened carbon steel screws, pure A2 steel cannot drill into steel sheet metal or steel beams – the drill point will deform. (For drilling into steel sheet metal outdoors, bimetallic screws are recommended).
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Excellent corrosion resistance: The A2 grade (AISI 304) provides long-lasting protection against rust in outdoor environments, damp spaces, and in aluminum constructions without the risk of galvanic corrosion.
What should one consider to ensure a successful installation with A2 self-drilling screws?
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Use the correct bit and appropriate pressure: Ensure you use the correct bit type (usually Torx or Phillips) so that the bit does not slip and damage the screw head or the corrosion protection.
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Operate at medium speed: Let the drill point work at a medium speed with steady, firm pressure. Avoid excessive speed to prevent heat buildup and overheating of the material.
Lubricate if necessary: When mounting in dense plastic materials or aluminum, a thin layer of assembly wax can facilitate tapping and prevent the screw from seizing (galling).