Screw Fasteners
螺丝紧固件
A screw fastener, also known as a cap screw, is a type of fastener which is held in place by a pre-formed internal thread. It is commonly used in a variety of applications, ranging from automotive components to industrial equipment. The most common types of screws used today are slotted, Phillips, and hex socket.
螺丝紧固件，又称作螺帽螺丝，是一种通过预形成的内螺纹来固定的类型的紧固件。它通常应用在从汽车部件到工业设备的各种应用中。如今用来制造螺丝的主要是凸槽、菲利普斯和十六角套筒螺丝。
Most screws have a cylindrical shank and a threaded body, making it easy to hold firmly in place when tightened. The threads may be either straight or tapered, depending on the application. The head of the screw can also vary in shape, size and style, ranging from round, flanged or countersunk.
大多数螺丝都有圆柱形的脚和螺纹结构，在加固时，很容易牢牢地固定。螺纹可以是直纹或锥形，取决于应用。螺丝头的形状、大小和样式也不尽相同，从圆形、法兰或埋头等多种类型。
Screws come in a variety of different materials and sizes and can vary greatly in strength. Steel, stainless steel and brass are among the most popular materials used for screws, while plastic, aluminum and copper are also popular options. The size will depend on the application and the strength of the material used.
螺丝材料和尺寸各异，强度也大不相同。钢、不锈钢和黄铜是最常用的螺丝材料，而塑料、铝和铜也是很受欢迎的选择。大小取决于应用和使用的材料的强度。
Today, there are many different types of screws that are available to choose from, including ones for general purpose use, such as those used for securing doors, windows, or shelves, as well as specialty screws for specific tasks. Screws can also be used for decoration or convenience, such as a screw to hold a light bulb or a screw to anchor a support cable.
如今，可以选择多种不同类型的螺丝，包括通用类型的螺丝，如用来固定门窗或架子的螺丝以及用于特定任务的专用螺丝。螺丝也可以用于装饰或便利，比如用来固定灯泡的螺丝或用来锚定支撑缆绳的螺丝。
No matter what type of screws you need, they all generally serve the same purpose of fastening two or more pieces of material together. However, it is important to choose the right type of screw for your application to ensure a secure and effective hold.
无论你需要什么样的螺丝，它们通常都具有把两件或多件材料紧固在一起的相同功能。然而，选择适合你的应用的正确类型的螺丝来确保牢固而有效地固定很重要。
