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DIN 7991 A2-70 A4-80 Stainless Steel Countersunk Head Hex Socket Bolt | ISO 2009

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DIN 7991 A2-70 A4-80 Stainless Steel Countersunk Head Hex Socket Bolt | ISO 2009

The stainless steel countersunk head hex socket bolt DIN 7991 is a fastener compliant with the German industrial standard DIN 7991. Manufactured from stainless steel (e.g., Grade 316), it features a conical countersunk head with a recessed hexagonal drive, requiring installation with a hex key (Allen wrench)

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DESCRIPTION
PRODUCT Tags
Structure and Advantages
Head Design: The conical countersunk head design allows it to be embedded flush with the workpiece surface, ensuring a smooth and aesthetically pleasing finish.
Application Scenarios: Suitable for scenarios requiring high strength and superior anti-loosening performance, such as mechanical equipment, electronics, and lighting fixtures.
Installation Characteristics: Requires a dedicated hex key for installation. The higher disassembly difficulty enhances resistance to accidental loosening.

DIN 7991 A2-70 A4-80 Stainless Steel Countersunk Head Hex Socket Bolt | ISO 2009
Product Parameter
 
DIN 7991 A2-70 A4-80 Stainless Steel Countersunk Head Hex Socket Bolt | ISO 2009
DIN 7991 A2-70 A4-80 Stainless Steel Countersunk Head Hex Socket Bolt | ISO 2009

 

Key Applications:

· Machinery & Equipment
Assembly of precision machinery where flat surface profiles are critical.Fastening components in engines, conveyor systems, and industrial tools.
· Electronics & Electrical Engineering
Securing internal components in control cabinets, servers, and high-value electronic devices.Mounting fixtures in LED lighting systems and electrical enclosures.
· Automotive & Transportation
Attaching body panels, chassis parts, and interior trim where a smooth surface is required.Use in railway vehicles and marine equipment due to corrosion resistance (e.g., A4-316 stainless grade).

 

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