Double-headed bolts (Studs), also known as double-headed screws or double-headed studs.It is used to connect the fixed link function of machinery. The double-headed bolts have threads at both ends, and the screws in the middle are thick and thin.Generally used in mining machinery, bridges, automobiles, motorcycles, boiler steel structures, hanging towers, long-span steel structures and large-scale buildings, etc.

Bolts specifically refer to screws with larger diameters, or they can have no heads, such as double-headed bolts.Generally, it is not called a "double-headed bolt“ but a ”double-headed stud".The most commonly used form of double-headed studs is threaded at both ends and a light rod in the middle.The most typical uses: anchor bolts, or places similar to anchor bolts, thicker connections, when ordinary bolts cannot be achieved. 

Uses: 1. The main body is used for large-scale equipment, and accessories need to be installed, such as sight glasses, mechanical sealing seats, reducer racks, etc.At this time, double-headed bolts are used, one end is screwed into the main body, and the other end is equipped with a nut after the accessories are installed. Since the accessories are often disassembled, the threads will be worn or damaged, and it will be very convenient to replace them with double-headed bolts.2. When the thickness of the connecting body is large and the length of the bolt is very long, double-headed bolts will be used.3. It is used to connect thick slabs and places where hexagonal bolts are inconvenient to connect, such as concrete roof frames, roof beams, monorail beam suspensions, etc.