Bolts specifically refer to screws with larger diameters, and can also have no heads, such as stud bolts. Generally, it is not called a "stud bolt" but a "double stud". The most commonly used form of double-ended studs has threads at both ends and a polished rod in the middle. The most typical use: anchor bolts, or places similar to anchor bolts, thick connections, when ordinary bolts cannot be achieved.
Application of stud bolts: used in the main body of large-scale equipment, which needs to install accessories, such as sight glasses, mechanical seal seat, reduction frame, etc., the stud bolt used at this time, one end is screwed into the main body, and the other after the accessories With a nut on one end, because the accessories are often disassembled, when the main body and the accessories are directly connected by bolts, the main body threads will wear out or damage over time, and it is very convenient to use stud bolts to replace them. In addition, the thickness of the connecting body is very large, and when the length of the bolt is very long, stud bolts are required.
The purpose of anti-loosening of stud bolt connection: In actual work, external load vibration, change, material high temperature creep, etc. will cause friction reduction. The positive pressure in the thread pair disappears at a certain moment and the friction force is zero, thus making the thread connection Loose, if repeated action, the threaded connection will loosen and fail. Therefore, it is necessary to prevent loosening, otherwise it will affect normal work and cause accidents.
Zhenghai Yongding Fastener is a stud bolt manufacturer and stud bolt supplier, focusing on the production of high-quality and affordable stud bolts. Stud bolts are evenly stressed, can withstand high temperatures and pressures, and are easy to install. Therefore, it is necessary to work under high temperature and high pressure, such as marine petroleum bolts, chemical equipment bolts, pressure pipe bolts, etc. All products of YongDing Fastener comply with international standards and have very clear requirements for manufacturing, inspection and packaging.