Button Head Flange Bolts

In the fields of precision instruments, consumer electronics, and modern furniture manufacturing, the requirements for fasteners have long gone beyond simply secure connection. These applications often have strict limitations on installation space, while also emphasizing a sleek and refined product appearance. Traditional hexagonal bolts, with their protruding heads and rough appearance, can easily scratch component surfaces and occupy excessive space, failing to meet the demands of sophisticated design.

We are a professional manufacturer with over 10 years of experience in the fastener industry, deeply understanding the stringent requirements of modern precision manufacturing for components. Our Button Head Flange Bolts (also known as small round head flange bolts) are manufactured in strict accordance with the ISO 10642 international standard.  With their unique low-profile round head design and integrated flange structure, they ensure reliable connection force while providing a smooth and aesthetically pleasing surface contact. They are perfectly suited for panel fixing, electronic equipment casing locking, and thin plate connections, making them the preferred fastener solution in the field of precision manufacturing.

Core Technological Advantages

1. Low-Profile Round Head Design: Suitable for Compact Spaces and Aesthetically Pleasing

The head height of our button head flange bolts is significantly lower than that of traditional hexagonal bolts. The low-profile design easily adapts to space-constrained applications or those requiring countersunk installation. Whether it's the confined assembly space inside a laptop or the panel fixing of precision instruments, they can be easily installed without occupying excessive space, ensuring a compact and rational internal structure of the equipment.

The head features a smooth, rounded design, resulting in a refined and sleek appearance. After installation, it fits tightly against the workpiece surface, without protruding edges, effectively preventing scratches to the component surface or injury to operators. This is especially suitable for applications such as modern furniture and automotive interiors, where aesthetic quality is important, enhancing the overall sophistication of the product.

The driving method is flexible and diverse, conventionally equipped with Phillips, internal hexagon, or combination slots, adapting to different assembly tools and operating scenarios. Even in confined spaces, fast and efficient assembly can be achieved, improving production efficiency.

2. Integrated Flange Structure: Stable Protection and High Efficiency

The flange is integrally formed with the bolt head, eliminating the need for additional washers, simplifying the assembly process, and reducing the variety of parts in inventory, thus lowering enterprise inventory management costs. No additional matching washers are needed during assembly, significantly improving production line efficiency, especially suitable for large-scale mass production scenarios such as consumer electronics.

The flange increases the pressure-bearing area between the bolt and the workpiece, evenly distributing the pre-tightening force to the workpiece surface, effectively preventing the bolt head from embedding into soft materials such as plastic, aluminum plates, and wood, protecting the integrity of the workpiece. At the same time, the large contact area between the flange surface and the workpiece provides a certain degree of anti-loosening and anti-vibration capabilities, improving connection stability.

3. Diverse Material Options to Meet All Scenario Needs

Carbon Steel (Grade 4.8/8.8): Economical and practical, meeting the connection needs of conventional industrial scenarios. The surface can be electroplated with zinc (environmentally friendly zinc/colored zinc/white zinc) or Dacromet treated, providing excellent corrosion resistance and suitable for general assembly needs in humid environments.

Stainless Steel (A2-70/A4-80): Made of 304 or 316 stainless steel, with strong corrosion resistance and no need for additional electroplating, providing a naturally bright appearance. Especially suitable for scenarios with strict requirements for hygiene and corrosion resistance, such as food machinery and medical equipment, ensuring safe and environmentally friendly use.

Core Technical Parameters

Typical Application Scenarios

With years of industry service experience and a deep understanding of the precision manufacturing field, our Button Head Flange Bolts have been widely used in numerous demanding applications, becoming the trusted choice for many customers:

1. Consumer Electronics: Used for securing laptop casings, smartphone components, flat-panel displays, and internal structures of printers. The low-profile design is suitable for the confined spaces of electronic devices, and the smooth head prevents scratching of precision components, ensuring the exquisite appearance and internal structure of the equipment.

2. Furniture Manufacturing: Suitable for invisible connection and fastening of panel furniture, office partitions, and aluminum alloy doors and windows. After installation, the surface is flat and aesthetically pleasing, without protruding edges, and does not affect the overall design style of the furniture.  The integrated flange protects materials such as wood and aluminum alloy, preventing damage to the connection points.

3. Precision Instruments: Used for securing measuring equipment, optical instruments, and automated control panels. The diverse material options can adapt to different working environments, providing stable connections without interfering with instrument accuracy, ensuring the normal operation of the equipment.

4. Automotive Interiors: Used for securing dashboard components, interior panels, and audio equipment. The low-profile design complements the refined style of the interior, and the smooth head prevents scratching of interior fabrics.  The anti-loosening performance is stable, able to withstand slight vibrations during vehicle operation.

Company Strength and Quality Assurance

We are a source factory integrating R&D, production, and sales, possessing advanced production equipment and extensive technical expertise. Our factory is equipped with a professional R&D team, a comprehensive supply chain management system, and large-scale warehousing facilities. We specialize in the production of various precision fasteners and can provide integrated MRO procurement and distribution services for metal fasteners, comprehensively meeting the diverse procurement needs of customers in the precision manufacturing field.

We firmly believe that details determine success, and we have established a strict, comprehensive quality control system: In the raw material warehousing stage, each batch of raw materials undergoes spectral analysis to accurately control the chemical composition, eliminating material defects from the source; the manufacturing process utilizes advanced multi-station cold heading and precision thread rolling technology to ensure thread accuracy meets the 6g standard and the head formation is perfectly consistent; in the finished product stage, each batch of products undergoes hardness testing, full inspection with go/no-go gauges, salt spray testing, and torque testing. Defective products are never released to the market. The company fully implements the ISO 9001 quality management system standard, and its products are certified to RoHS and REACH environmental directives, ensuring safety and environmental protection for global distribution.

Our product range is extensive, including not only Button Head Flange Bolts but also heavy-duty hex bolts, heavy-duty hex nuts, threaded rods, studs, washers, screws, etc.  Materials include carbon steel, alloy steel, and stainless steel, strictly adhering to international standards such as DIN, ISO, EN, JIS, ASTM/ANSI/ASME/SAE, BS, and AS. Our products are exported to North America, Europe, Australia, Southeast Asia, the Middle East, Latin America, and many other regions, and are widely used in precision manufacturing, automotive manufacturing, building steel structures, oil pipelines, mechanical equipment, and many other fields.

Reasons to Choose Us

1. Direct supply from the source factory, outstanding cost-effectiveness: As a physical manufacturer, we achieve independent production of the entire process from raw materials to finished products, eliminating intermediaries and providing customers with highly competitive factory prices. We have ample stock of standard specifications and can quickly respond to delivery needs, ensuring our customers' production schedules.

2. Professional technical support, precise matching of needs: Our engineering team has a deep industry background and is familiar with the assembly requirements of various fields of precision manufacturing. Based on specific customer application scenarios, such as specific torque requirements, material matching, or anti-loosening needs, we can provide professional selection advice and technical solutions to ensure precise product matching.

3. Flexible customization capabilities, adapting to personalized needs: In addition to standard products, we specialize in non-standard customization (OEM/ODM) services. Whether it's special lengths, diameters, groove types, or specific surface treatments and packaging requirements, we can flexibly meet them, helping customers achieve personalized product designs.