Button Head Cap Screw is a fastener with an internal hexagonal socket that fits a wrench for turning. It features a rounded head for a more finished look and a wider load bearing surface that resists loosening.
Button socket cap screws have a lower profile than traditional socket caps and are ideal for applications with limited head height. They have a reduced maximum preload but still offer high strength and reliability.
Material
Button head socket cap screws are threaded fasteners that have a rounded head that is fitted with a hexagonal socket to fit a wrench for turning, which allows them to be tightened and removed to much higher torque specifications than slotted or cross-recessed drive machine screws. They also have a lower profile which makes them ideal for use in applications where space is limited.
These screws are typically made from durable materials, enabling them to withstand high-strength demands. Their head design gives them a clean and finished look, which contributes to their versatility and wide application across various industries.
They are a popular choice in applications that require a high level of strength and security, such as machinery assembly and automotive manufacturing. They are also a reliable option in applications where the bolting material is too thin to countersink, such as end panels, display shelving and carts. They are often used in conjunction with washers and hex nuts to add extra mechanical strength and prevent loosening under stress.
Shape
Button head socket cap screws feature a domed, low-profile, and recessed head that allows them to be countersunk into a surface. This feature makes them ideal for applications that require a clean, finished appearance and for use in spaces where clearance is limited. These screw types also have a larger load bearing face than other socket cap screws, which helps distribute force evenly across the fastening surface and prevent loosening over time.
They’re used in industries like furniture manufacturing, machine tooling applications, and steel fabrication, as well as aerospace settings where strength, precision, and a clean finish are paramount. These versatile fasteners can withstand challenging conditions, such as extreme temperatures and chemical environments, thanks to their specialty materials and design features.
Regular inspections and the use of proper tools to prevent damage to the screws can ensure optimal performance. Always check the rated tensile and shear strengths to avoid mechanical failure. Corrosion resistance is a vital characteristic when choosing screw materials, so choose stainless steel types that will resist the elements.
Load Bearing Surface
Button head socket cap screws have a dome-shaped, low profile that facilitates a smooth and clean finish. They’re often used in electronics, machinery, and automotive applications, where a flush and low-profile fastener is desired. Their large under head face also distributes force evenly, which reduces the need for washers in many cases.
These threaded fasteners are able to tighten to much higher torque specifications than slotted or cross-recessed drive machine screws. They’re commonly fabricated from materials like stainless steel and are designed for use in applications where corrosion resistance is an important consideration.
In addition to tensile strength, these screw designs also feature a shear capacity, which helps to hold components in place. They’re frequently used in manufacturing, metal framing, and construction to secure components and provide a strong and durable attachment point. They’re also often employed in electrical, automotive, and furniture assembly. The size and length of these screws can vary depending on the specific application.
Thread Length
The thread length on a button head socket cap screw is measured from the start of the first full form (or ‘full pitch’) thread to the point where it begins to turn into the next full thread. It is also called the gripping gaging length.
Button head socket cap screws have a rounded low-profile head that fits a wrench for turning, making them ideal for use in areas where there is little or no external clearance. They are commonly used in light-duty applications that require a secure fastening, and they can also be used to add a more finished appearance to an area.
These screws are made of durable materials that can withstand considerable force and pressure, and they are easy to install and remove. However, their performance and lifespan can be affected by a variety of factors, including climate, soil conditions, and improper installation or removal techniques. Regular inspections and maintenance can ensure that these screws perform to their rated capacity and provide reliability and durability for long-term use.
