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  • Hex Head Self Tapping Screw
  • Hex Head Self Tapping Screw
  • Hex Head Self Tapping Screw
  • Hex Head Self Tapping Screw

Hex Head Self Tapping Screw

The Hex Head Self Tapping Screw is a threaded fastener with a hexagonal head and a thread-forming or thread-cutting point. The hex head is designed for use with wrenches or sockets, enabling high-torque driving during installation. The screw features a pointed tip that forms or cuts mating threads as it is driven, allowing it to fasten materials together without a pre-tapped hole. Its self-tapping capability makes it suitable for use in materials such as plastic, wood, and sheet metal. This specific product has the specification ST8.0-12*19, where ST8.0 denotes an 8.0mm nominal diameter, 12mm is the thread length, and 19mm is the overall length. It is manufactured from SUS304 austenitic stainless steel, a material recognized for its reliable corrosion resistance in various conditions. The surface treatment is Brightening, resulting in a clean, metallic finish.

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  • Product Features

  • Specification: ST8.0-12*19

    Material: SUS304

    Surface Treatment: Brightening

    Product Introduction

    The Hex Head Self-Tapping Screw is designed for heavy-duty metal fastening applications requiring high torque transmission and secure thread engagement in pre-drilled holes. The hex head enables positive engagement with standard hex socket tools for reliable torque transfer during installation. These screws cut mating threads in pre-drilled holes, providing secure engagement without requiring a separate tapping operation. Manufactured from SUS304 stainless steel with brightening surface treatment, this screw provides general corrosion resistance with an aesthetic bright finish. The ST8.0-12 thread specification with 19mm length offers engagement for structural connections and heavy-duty metal assemblies requiring a large-diameter fastener with a compact profile.

    Core Advantages

    01
    Hex Head Design
    Enables positive engagement with standard hex socket tools for high torque transmission and secure fastening.
    02
    Self-Tapping Thread
    Cuts mating threads in pre-drilled holes, providing secure engagement without requiring a separate tapping operation.
    03
    Large Diameter Specification
    ST8.0-12 provides large-diameter thread engagement for structural connections and heavy-duty metal assemblies.
    04
    SUS304 Stainless Steel
    Provides general corrosion resistance for indoor and mild outdoor applications with a bright aesthetic finish.
    05
    Brightening Treatment
    Aesthetic bright finish with enhanced surface smoothness and improved corrosion resistance.
    06
    Compact Length
    19mm length provides engagement for structural connections and heavy-duty metal assemblies with a compact profile.

    Product Features

    Hex head configuration Positive engagement with standard hex socket tools provides reliable torque transmission for controlled installation in heavy-duty applications.
    Self-tapping thread Cuts mating threads in pre-drilled holes, providing secure engagement without requiring a separate tapping operation.
    ST8.0-12 thread specification Large-diameter metric thread configuration provides consistent performance for structural connections and heavy-duty metal assemblies.
    SUS304 stainless steel material Provides general corrosion resistance for indoor and mild outdoor applications with a bright aesthetic finish.
    Brightening surface treatment Aesthetic bright finish with enhanced surface smoothness and improved corrosion resistance.
    19mm length Compact length provides engagement for structural connections and heavy-duty metal assemblies with a low-profile requirement.

    Application Scenarios

    Heavy equipment assembly
    Structural steel connections
    Industrial machinery
    Automotive components
    Construction equipment
    Heavy-duty metal fabrications
    Equipment mounting
    Infrastructure projects

    This hex head self-tapping screw is deployed in heavy-duty metal fastening applications requiring large-diameter thread engagement and high torque transmission. Applications include heavy equipment assembly, structural steel connections where reliable fastening is essential, industrial machinery, automotive components, construction equipment, heavy-duty metal fabrications, equipment mounting, and infrastructure projects where the ST8.0-12 specification provides large-diameter engagement and the hex head enables high torque transfer.

    Common Questions and Solutions

    What is the recommended socket size for this screw?
    Select a hex socket that fits the hex head precisely. The socket size is determined by the ST8.0 thread diameter. Using the correct socket size prevents rounding of the hex corners and ensures positive engagement for torque transfer.
    What is the recommended pilot hole size for this screw?
    The pilot hole size for the ST8.0-12 self-tapping screw varies based on material thickness and hardness. Refer to the technical datasheet for recommended pilot hole diameter to ensure proper thread engagement and prevent material damage or thread stripping.
    What material thickness can the ST8.0-12*19 screw accommodate?
    The ST8.0-12 specification with 19mm length provides engagement for structural connections and heavy-duty metal assemblies. The actual maximum material thickness depends on the thread length and substrate hardness. Consult the technical datasheet for specific thickness recommendations.
    What is the brightening surface treatment?
    Brightening is a surface treatment process that enhances the natural finish of the stainless steel material. It provides a bright, aesthetic appearance while improving surface smoothness and corrosion resistance through removal of surface contaminants and oxidation.
    What is the difference between SUS304 and other stainless steel grades?
    SUS304 is an austenitic stainless steel that provides general corrosion resistance suitable for indoor and mild outdoor applications. It offers good formability and an attractive bright finish, making it suitable for applications where corrosion resistance and appearance are required.
    What is the recommended installation speed for this screw?
    Install at controlled speeds to prevent thread galling and ensure proper thread formation. The large diameter ST8.0 thread requires appropriate speed management. Use torque-controlled drivers to prevent over-tightening when the hex head seats against the workpiece surface.

    Installation Considerations

    1
    Select the correct hex socket size for the screw head to prevent rounding and ensure positive torque transmission during installation.
    2
    Drill pilot holes to the recommended diameter for the ST8.0-12 thread size and material thickness to ensure proper thread engagement.
    3
    Use torque-controlled installation tools to prevent over-driving. The hex head should seat against the workpiece surface without damaging the head or surrounding material.
    4
    Apply appropriate spindle speed to prevent thread galling; the large diameter thread requires controlled speed for proper thread formation.
    5
    Ensure perpendicular alignment between screw axis and workpiece surface to prevent cross-threading and ensure proper engagement.
    6
    The brightening treatment provides aesthetic and corrosion protection. Handle screws with clean gloves to maintain surface appearance and prevent contamination.

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Jiaxing Zhongke Metal Technology Co.,Ltd.
Jiaxing Zhongke Metal Technology Co.,Ltd. is located in Xinfeng Town Industrial Park, Nanhu District, Jiaxing City, Zhejiang Province. It is a manufacturer integrating the development, design and manufacturing of heat treatment equipment. At the same time, due to the advantages in the heat treatment industry, it also takes into account the development of general parts, automotive parts, and stainless steel high-strength fasteners. Design, development, and manufacturing, and open to the outside world for heat treatment process design and processing of various metal materials. As China Wholesale Hex Head Self Tapping Screw Suppliers, Exporter and Hex Head Self Tapping Screw Factory. The company has strong financial and technical strength, complete production equipment, scientific testing methods, and a perfect management team. "Quality-oriented, technological innovation" is our purpose, and adhering to the concept of "service first, honesty and trustworthiness", to provide customers with diversified and reliable products.
  • 2001

    Founded in

  • 17 acres+

    Covered area

  • 100+

    Manufacturing equipment

  • 200+

    Number of employees

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