The difference between fastener bolts and screws

2023/07/30

Bolts and screws are commonly used a kind of connecting fasteners, which mainly play the role of connecting and fixing in various industries and facilities. Many people sometimes confuse bolts and screws, which is very easy to confuse. The manufacturer of Kurt bolts will introduce the differences between fastener bolts and screws, hoping to help everyone. The difference between fastener bolts and screws: 1. The definitions of fastener bolts and screws are different: bolts: bolts are cylindrical threaded fasteners that are used in conjunction with nuts during use. It is mainly used to tighten and connect two parts with buried holes, and this connection method becomes a bolt connection. Screws, also known as screws, are special tools for cyclically and progressively tightening vessel parts by means of the physical and mathematical principles of material slope circular rotation and sliding friction. Its set screw is used to fix the relative position of parts. Tighten the set screw into the screw hole of the part to be set screw, and press its tail end on the surface of another part, that is, fix the former part to the next part. 2. The shape and structure of fastener bolts and screws are different: Bolt: a type of fastener composed of two parts: the head and the extruder screw (a cylinder with threads). very big. Screw: A type of fastener formed by the head and the extruder screw. The head is mostly slotted, cross-slotted, and there are many internal and external hexagons, which are generally small. 3. Fastener bolts are used differently from screws: bolts: generally used in pairs with nuts, used for through holes, and can be replaced at will after damage. Screws: Generally, nuts are not used, and they are directly matched with two objects (generally, the connecting parts need to be drilled first, and the thread is tapped) and are mostly used for blind holes, and the connected parts are rarely disassembled. 4. Fastener bolts and screws use different tools: bolts generally use special tools such as spanners. Screws generally use special tools such as screwdrivers. 5. The fastening of bolts and screws is different: bolts are generally used in conjunction with nuts or screwed into processed bolt holes. In addition to the two tightening methods of bolts, screws also have self-tapping screws, which are directly screwed into workpieces with very soft materials, without processing bolt holes. For example, the wood screws we often say are such screws. 6. The use occasions of fastener bolts and screws are different: bolts and screws are used in different places, and the accuracy standard of bolts is not high, unless there are mutual cooperation regulations. Generally, bolts are easy to disassemble and assemble, and the processing accuracy Low, not limited by the connecting material, widely used, required to cooperate with the bolts, can bear the longitudinal load; the screw structure is compact, but cannot be disassembled frequently, and cannot bear large forces.

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