Hex Socket Button Head Screws Machine Screws Round Head Internal Hexagonal Screws

This series of pan - head hexagon socket screws is a general - purpose fastener widely used in fields such as industrial manufacturing, equipment assembly, and mechanical maintenance. It features a combined design of an arc - shaped pan head and a hexagon socket drive. The entire threaded rod is precisely formed by rolling and can be directly used in conjunction with nuts and tapped holes without additional processing. The products cover three major main versions to meet different working condition requirements:

304 Stainless Steel Version: It is integrally formed from industrial - grade 304 stainless steel without additional plating. It has inherent resistance to salt spray and corrosion, making it suitable for complex working conditions such as humid, acidic, alkaline, and outdoor environments.

Carbon Steel Galvanized Version: It uses high - quality medium - carbon steel as the base material. The surface is treated with blue - white zinc passivation, resulting in a uniform and shiny coating. It has excellent anti - rust performance and outstanding cost - effectiveness, making it a cost - effective choice for conventional indoor and outdoor working conditions.

Carbon Steel Blackened Version (Grade 10.9): It is made of high - strength carbon steel as the base material and is treated with heat treatment and blackening passivation. It has high hardness and tensile resistance, making it suitable for heavy - load and high - torque working conditions. Its matte appearance is low - key and does not affect the overall texture of the equipment.

The pan - head design provides a large contact surface, which is less likely to damage the workpiece surface during tightening. The hexagon socket drive ensures uniform torque transmission, is less prone to slipping and stripping, and allows a single person to complete the installation quickly. It

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Our Machine Screw is a product of meticulous engineering, designed to offer a reliable and efficient fastening solution. The design begins with the selection of high-quality materials, typically including stainless steel, carbon steel, or alloy steel, depending on the specific requirements of the application.

The head of the machine screw comes in various shapes, such as flat head, round head, pan head, and socket head. Each head shape serves a unique purpose. For instance, the flat head is ideal when a flush surface finish is required, as it sits flat against the material being fastened. The round head provides a more aesthetically pleasing appearance and is often used in applications where a smooth surface is desired. The pan head combines the advantages of both, offering a slightly rounded top with a wider bearing surface for better load distribution. The socket head, on the other hand, is designed to be tightened with an Allen wrench, allowing for higher torque application and a more secure fit.

The shank of the machine screw is precisely threaded to ensure a snug and accurate fit with the corresponding nut or tapped hole. The threading is cut with high precision, following standard thread profiles such as Unified Thread Standard (UTS) or Metric threads. The length of the shank can vary widely, from short screws used in delicate electronic components to longer ones for thicker materials or structural applications. Additionally, some machine screws may feature a partially threaded shank, which can be beneficial in certain applications where a combination of a threaded and unthreaded portion is required.

1. Precision Threading: Our machine screws boast precision threading that guarantees a consistent and reliable connection. The accurate thread pitch and diameter ensure that the screw mates perfectly with the nut or tapped hole, minimizing the risk of cross-threading and providing a secure fastening.

2. Versatile Head Styles: With a variety of head styles available, our machine screws can be tailored to different application needs. Whether it's for functional requirements like a flush fit or aesthetic considerations, there is a head style to suit every situation.

3. High Tensile Strength: Constructed from top-grade materials, our machine screws possess excellent tensile strength. They can withstand significant loads without breaking or deforming, making them suitable for both light-duty and heavy-duty applications.

4. Corrosion Resistance: Many of our machine screws, especially those made from stainless steel, offer exceptional corrosion resistance. This makes them ideal for use in outdoor environments, in contact with moisture, or in applications where exposure to chemicals is a concern.

5. Wide Range of Sizes: We offer a comprehensive range of sizes for our machine screws, catering to diverse project requirements. From tiny screws for intricate electronic work to larger ones for industrial machinery, our product lineup has you covered.

Hexagon drive, high torque anti-slip

The hexagon slot is compatible with standard hexagonal wrenches, with uniform torque transmission, capable of withstanding higher tightening torque, less prone to slipping or cracking, even in narrow spaces or batch assembly scenarios, and can be stably installed, compatible with automated assembly lines and manual tightening operations.

Multiple materials and strengths, precise adaptation in all working conditions

The three versions respectively cover different needs: the stainless steel model focuses on long-term anti-corrosion, suitable for outdoor humid environments; the galvanized model focuses on high cost-effectiveness, suitable for regular indoor and outdoor working conditions; the 10.9 grade blackening model focuses on high strength and heavy-duty, suitable for high-torque scenarios such as industrial equipment and mechanical components, without the need for additional customization to meet different working conditions.

Precise thread processing, stable engagement without slippage

The thread is formed by CNC rolling process, with regular tooth shape and strict tolerance control, perfectly compatible with standard nuts / tapping holes, smooth tightening without jamming, still maintaining stable engagement performance after repeated disassembly and assembly, less prone to slippage or disengagement, ensuring connection reliability.

Disc head design, balancing installation convenience and workpiece protection

The circular disc head has a large contact surface,not easy to damage the surface of the workpiece during tightening， and is suitable for semi-sunken installation requirements. After installation， the head is flat and does not affect the subsequent assembly or appearance of the workpiece； the arc-shaped head has no sharp edges， less likely to scratch the operator or the workpiece， suitable for various exposed assembly scenarios.

One-piece molding process， strong and durable

The screw body is formed by cold forging one-piece molding， without welding or splicing， the rod body strength is uniform and stable； the 10.9 grade blackening model is strengthened by heat treatment， with excellent tensile and shear performance， less prone to breakage or deformation during long-term heavy-duty use， ensuring the safety of equipment connection.

Complete specifications， strong versatility

Thread specifications cover M2-M10， length 3mm-100mm， suitable for the thread connection requirements of most electronic devices， appliances， machinery， furniture， etc.， is a one-stop choice for universal fasteners， reducing procurement and inventory costs.

1. Electronics Industry: Machine screws are extensively used in the electronics industry for assembling various components. They are used to secure circuit boards, enclosures, and other delicate parts. The precision threading and small sizes of our machine screws make them perfect for this industry, ensuring a secure and reliable connection without damaging the sensitive electronic components.

2. Furniture Manufacturing: In furniture manufacturing, machine screws play a crucial role in joining different parts together. Whether it's attaching legs to a table, assembling a cabinet, or fixing hardware, our machine screws provide a sturdy and long-lasting connection. The variety of head styles also allows for a more aesthetically pleasing finish.

3. Automotive and Aerospace: In the automotive and aerospace sectors, where reliability and precision are of utmost importance, our machine screws are used in various applications. They are used to fasten engine components, interior parts, and structural elements. The high tensile strength and corrosion resistance of our screws ensure that they can withstand the harsh operating conditions in these industries.

4. Industrial Machinery: For industrial machinery, machine screws are essential for assembling and maintaining the equipment. They are used to hold together gears, shafts, and other mechanical parts. The ability of our machine screws to withstand heavy loads and vibrations makes them a reliable choice for this demanding application area.

Q1: How do I choose the right head style for my machine screw?

A: The choice of head style depends on your specific application. If you need a flush surface, a flat head would be suitable. For a more aesthetic look or when a wider bearing surface is required, a round or pan head might be better. If you need to apply high torque, a socket head with an Allen wrench would be the ideal option. Consider the functional and aesthetic requirements of your project to make the right choice.

Q2: Can I use a machine screw in a tapped hole without a nut?

A: Yes, machine screws are designed to be used in tapped holes without a nut. The threads on the screw are designed to engage directly with the threads in the tapped hole, providing a secure fastening. However, make sure that the tapped hole is properly drilled and threaded to match the screw's specifications for a proper fit.

Q3: What is the maximum load capacity of your machine screws?

A: The maximum load capacity of our machine screws varies depending on the size, material, and thread type. Generally, larger diameter screws and those made from stronger materials can support higher loads. You can refer to our product specifications for detailed load capacity information for each specific screw. If you have a specific load requirement for your application, our technical support team can assist you in choosing the appropriate machine screw.

Q4: Are your machine screws suitable for outdoor applications?

A: Many of our machine screws, especially those made from stainless steel or with corrosion-resistant coatings, are suitable for outdoor applications. Stainless steel screws offer excellent resistance to rust and corrosion caused by exposure to moisture, sunlight, and other outdoor elements. However, for extremely harsh outdoor conditions, such as in coastal areas with high salt content in the air, it is advisable to choose screws with additional protective coatings or made from more specialized materials.