It is also very difficult to trace the history of the casters, but after people invented the wheels, it is much easier to carry and move the objects, but the wheels can only run in a straight line, and the change in direction when carrying a large object is still Very difficult, and later people invented the wheel with the steering structure, which we now call the caster or universal wheel. The caster has revolutionized the era of people carrying, especially moving objects, not only easy to carry, but also can move in any direction, greatly improving efficiency.
In the modern era, with the rise of the industrial revolution, more and more equipment needs to be moved, casters are becoming more and more widely used all over the world, and all walks of life are almost inseparable from casters. In modern times, with the continuous development of technology, equipment is becoming more and more versatile and highly utilized, and casters become indispensable parts. The development of casters has become more specialized and has become a special industry.
According to the stress mode of connection, it can be divided into ordinary ones and glue holes. According to the shape of the head, it can be divided into round head, square head, countersunk head, etc., of which the hexagon is the most commonly used, and the countersunk head is generally used in the place where the connection is required.
Hex Bolts,Hex Structural Bolts,Square Head Bolts, Round Head Bolts,Countersunk Head Bolts,etc.
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