Double end Bolts Studs
Stud, also known as double end bolts or double end stud. It is used to connect the fixed link function of the machine. The stud bolt has threads at both ends, and the rod in the middle is thick or thin. Generally used in mining machinery, bridges, automobiles, motorcycles, boiler steel structures, pendant towers, long-span steel structures, large buildings, etc.
Bolts refer specifically to screws with larger diameters（bolts normally need nut）and may also have no heads, such as stud bolts. In general, it is called a “double end bolt” or a “stud bolt”. The most common form of the stud is threaded at both ends and a polished rod in the middle.
The most typical use: anchor bolts, or places similar to anchor bolts, thicker connections, when ordinary bolts cannot be used.
Thread specification d=M12, nominal length L=80mm, performance grade 4.8 equal-length stud bolts are completely marked as M12×80
What Are Double end Bolts Studs Used For?
- When the main body is large equipment, and accessories need to be installed, such as sight glass, mechanical seal seat, deceleration frame, etc. At this time,double end bolts are used, one end is screwed into the main body, and the other end is equipped with a nut after the accessory is installed. Since the accessory is frequently disassembled, the thread will be worn or damaged, and it is very convenient to use the stud bolt to replace it.
- When the thickness of the connecting body is very large and the bolt length is very long, double end bolts will be used.
- It is used to connect thick plates and places where it is inconvenient to use hexagonal bolts, such as concrete roof trusses, roof beam suspension monorail beam suspension parts, etc.
- Anti-loosening purpose, In actual work, external loads such as vibration, change, and high-temperature creep of materials will reduce the friction force. The positive pressure in the thread pair disappears at a certain moment, and the friction force is zero, thus making the threaded connection lose. will relax and fail. Therefore, it is necessary to prevent loosening, otherwise, it will affect normal work and cause accidents.
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