A screw’s head shape can have a significant impact on the strength and appearance of a fastener. There are many different head shapes, threading options, and custom features that can be used to create the perfect screw for your application. However, two of the most common screws are cap screws and button head cap screws. Both have their own advantages and disadvantages, and it is important to choose the correct screw for your specific needs. In this article, we will discuss the differences between these two types of screws to help you decide which is best for your project.
Cap screws are threaded fasteners that feature a raised dome-shaped head and a hexagonal drive hole. They are commonly used in a wide range of applications including automotive manufacturing, furniture manufacture and steel fabrication. They have a high tensile strength and can withstand a greater amount of torque than other screw types.
Unlike traditional socket cap screws, which can be turned with a wrench, these screws are typically driven by using a socket driver. They are also available in a variety of materials including brass, zinc and black oxide stainless steel. Brass socket cap screws are generally considered to be more durable than standard zinc-plated varieties, and they offer improved resistance against corrosion in harsh environments.
Button socket caps have a smooth, slightly rounded head that is more bulbous than traditional cap screw heads. This design allows for a higher torque rating than conventional socket head cap screws, and the lack of sharp edges makes it ideal for use in applications where the screw or bolt could potentially snag on clothing or equipment. Button Head Cap Screw