Product Details
Our ISO 7380 Hex Socket Button Head Screws are meticulously engineered to international standards for consistent quality and performance. The defining characteristic is the low-profile, wide-diameter dome head. This design offers a broader bearing surface compared to traditional cap screws, which helps distribute the clamping force over a larger area to prevent damage to softer materials and can often eliminate the need for a separate washer. The smooth, rounded contour is safe to the touch and provides a clean, finished look. The fastener is made from robust carbon steel, heat-treated to achieve property classes from 4.8 for general use up to 12.9 for high-stress applications. The Black Oxide coating is a chemical conversion process that creates an integral layer of magnetite on the screw’s surface. This provides a durable, uniform black finish with minimal dimensional change, preserving the precision of the threads while offering mild corrosion and wear resistance.
Product Parameters
The technical specifications for our ISO 7380 Black Oxide Hex Socket Button Head Screws are outlined below, ensuring they meet your precise design and assembly needs.
| Parameter | Specification |
|---|
| Product Name | ISO 7380 Hex Socket Button Head Screws |
| Standard | ISO 7380 |
| Material | Carbon Steel |
| Property Class / Grade | 4.8, 8.8, 10.9, 12.9 |
| Surface Treatment | Black Oxide Plated |
| Head Style | Button Head / Dome Head |
| Drive Style | Internal Hex Socket (Allen) |
| Diameter Range | M3 – M16 (Standard); other sizes available upon request |
| Brand Name | Duojia |
| Place of Origin | Hebei, China |
| Key Feature | Low-profile, aesthetic dome head with a wide bearing surface |
| Application | Electronics, Automotive Trim, Furniture, Light Machinery, General Industry |
Product Features
These ISO 7380 screws are designed with several key features that provide significant advantages in assembly and final product quality.
- Aesthetic and Safe Design: The smooth, low-profile dome head offers a clean, finished appearance that enhances product aesthetics. Its rounded shape eliminates sharp edges, making it a safer choice for accessible parts and preventing snags on wires or clothing.
- Wide Bearing Surface: The button head’s wider base distributes clamping pressure more evenly than other screw types. This is particularly beneficial when fastening thin or soft materials like plastics, aluminum, or composites, reducing the risk of cracking or deformation.
- Versatile Strength Options: Available in a full range of carbon steel property classes, from standard 4.8 to high-tensile 12.9, these screws can be specified for both light-duty decorative fastening and more demanding structural applications requiring reliable strength.
- Sleek, Non-Reflective Finish: The Black Oxide plating provides a deep, uniform matte black finish that is ideal for applications where light reflection is undesirable, such as in optical equipment, camera mounts, or dark-themed product designs.
- Secure and Reliable Installation: The internal hex socket drive allows for positive tool engagement, enabling the application of consistent and controlled torque. This ensures a tight, secure joint that is resistant to stripping, especially when compared to slotted or Phillips drives.
Product Applications
The unique combination of aesthetics, safety, and function makes our ISO 7380 Button Head Screws a preferred choice across numerous industries. In consumer electronics, they are used to assemble casings, secure internal components, and provide a polished external finish on laptops, gaming consoles, and audio equipment. The automotive industry utilizes them for fastening interior trim, dashboard panels, and door components where a smooth, non-injurious head is crucial. They are a staple in the furniture and cabinetry sector for both structural assembly and visible connections, offering a modern and clean look. In light industrial applications, they are perfect for attaching safety guards, access panels, and control interfaces on machinery. They are also highly popular in the hobbyist and prototyping communities, including for building drones, RC vehicles, and custom computer cases, where appearance and performance are equally important.
