Detalles del producto

These screws are engineered for strength, aesthetics, and a flawless fit, with features tailored to specific environmental and performance needs.

• DIN 7991 Countersunk Head: The screw features a flat-topped, conical head (typically with a 90-degree angle) that is designed to sit perfectly within a pre-drilled countersunk hole. This allows the head to become flush with the surrounding material, creating a smooth, safe, and visually appealing surface free of any protrusions.
• Internal Hex Socket (Allen) Drive: The head incorporates an internal hexagonal recess, designed for use with a standard hex key (Allen wrench). This drive style allows for high-torque application without the risk of cam-out, ensuring a secure and reliable fastening while protecting the drive from external damage.
• High-Strength Carbon Steel: These screws are forged from quality carbon steel and are available in a variety of property classes to handle different load requirements, including:
  • Grade 8.8: A high-tensile steel ideal for most industrial, automotive, and structural applications.
  • Grade 10.9 & 12.9: Very high-strength steels for critical, high-stress assemblies that demand maximum clamping force and load-bearing capacity.
• Versatile Black Finish Options:
  • Black Oxide: This is a conversion coating that turns the surface of the steel black. It provides mild corrosion resistance (best suited for dry, indoor environments or when oiled), enhances wear resistance, and offers a non-reflective matte finish. It causes minimal dimensional change, making it ideal for precision parts.
  • Black Zinc Plating: This finish involves electroplating a layer of zinc onto the steel, followed by a black chromate conversion coat. It provides significantly better corrosion resistance than black oxide, making it suitable for applications in damp or moderately corrosive environments while still providing a sleek black appearance.

Parámetros del producto

The technical specifications for our DIN 7991 Black Oxide / Black Zinc Hex Socket Countersunk Head Cap Screws are detailed below.

Características del producto

These high-performance screws are engineered to deliver a superior finish and reliable performance:

• Perfect Flush-Mount Finish: The countersunk head design allows the screw to sit perfectly level with the material surface, ensuring a smooth, clean, and snag-free finish.
• Dual Finish Versatility: Choose between Black Oxide for a non-reflective, wear-resistant finish ideal for machinery, or Black Zinc for enhanced corrosion protection in more demanding environments.
• High Tensile Strength: Made from high-grade carbon steel (including 8.8, 10.9, and 12.9), these bolts provide the strength needed for secure, load-bearing joints.
• Sleek Aesthetic: The uniform black finish provides a clean, professional look, making it a popular choice for visible fasteners in electronics, furniture, and automotive interiors.
• Secure High-Torque Installation: The internal hex drive enables controlled, high-torque tightening for a solid and reliable connection without stripping the head.
• DIN Standard Compliance: Manufactured to precise DIN 7991 standards, guaranteeing dimensional accuracy, consistent quality, and interchangeability.

Aplicaciones de los productos

The combination of a flush profile and versatile black finishes makes these screws ideal for a variety of industries:

• Machinery and Tooling: Used for securing panels, guards, and fixtures where a non-protruding head is required and the black oxide finish reduces glare and adds wear resistance.
• Electronics Enclosures: Perfect for assembling cases, racks, and faceplates, providing a clean, professional appearance.
• Automotive: Ideal for interior trim, dashboard assemblies, and other components where a flush, non-reflective fastener is needed.
• Furniture and Cabinetry: Used in high-end furniture and architectural woodworking to create strong, hidden joints with a modern aesthetic.
• General Manufacturing: A versatile fastener for any assembly that requires a strong bolt with a clean, flush-mounted black finish.