Cross outer hexagonal head cavity flange self-tapping screws are a specialized type of fastener designed for robust and secure connections in various materials. These screws are characterized by their hexagonal outer drive, which allows for a stronger grip when using a wrench or drill, and a flange head that provides a larger bearing surface, reducing the risk of material damage during installation.
These screws are usually made of stainless steel, carbon steel, or other metallic materials. Surface treatments may include zinc plating, nickel plating, passivation, etc. to improve corrosion and wear resistance. The chemical composition of the stainless steel material should be within the range specified in the steel group, the chemical composition of A2 and A4 stainless steel is specified in the following table .
Advantage:
Hexagonal Drive: The hexagonal recess allows for a better grip and torque transfer, reducing the risk of the screwdriver slipping off during installation.
Self-Tapping Capability: These screws can create their own threads in a predrilled hole, eliminating the need for pre-tapping, which saves time and effort .
Versatility: Suitable for a wide range of materials, including metals, plastics, and composites, making them a versatile choice for various industries .
High Tensile Strength: Often made from high-strength materials like carbon steel or stainless steel, providing reliable strength and durability .
Flange Head Design: The flange head provides a larger bearing surface, which can help prevent the material from sinking or damaging, especially in softer materials.
Scope of Application
Furniture and Cabinetry: Assembles wooden or composite materials in furniture and cabinetry, providing a secure and durable connection .
Plumbing and Electrical Work: Used to secure piping or to mount electrical boxes, where their ease of installation and strong hold are crucial .
Home Improvement: DIY enthusiasts and home improvement professionals rely on these screws for a wide variety of projects, from mounting shelves to installing fixtures .
Mechanical and Structural Applications: In machinery and structural assemblies where high torque and preload are required .
Aerospace and Marine: For lightweight and high-strength connections in aerospace and marine applications where corrosion resistance is also a factor.
