The following is the difference between the three screws, bolts, and studs introduced by Jinming Hardware Grid Xiaobian?
Screws are commonly known as "screws" with external threads
The shape of the nut is usually hexagonal, and the inner hole is an internal thread. It is used to cooperate with the bolt and tighten the related parts.
Nuts are commonly known as "nuts" as standard.
The head of the bolt is generally hexagonal, and the stem is provided with external threads. There are whole silk and half silk, preferably according to the national standard code.
The screws are small, the head has a flat head, a cross head, etc., and the rod has external threads.
The stud should actually be called a "double-headed stud", with external threads at both ends, and generally a polished rod in the middle. The long end of the thread is used to connect to the deep hole, and the short one is connected to the nut.
Screw is a more general term.
The exact words should be bolts, screws, and screw caps.
Bolts and screws are round and long objects, with equally spaced threads engraved on them.
Bolts are flat-cylinder; screws are pointed like nails at the front.
Bolts must be used with screw caps or on objects that have already been threaded.
Screws are used on relatively soft or thin objects, and when used, they are drilled forward with their own threaded side rotation.
The threads on the bolts are shallower without sharp edges; the threads on the screws are sharper and deeper, which is good for drilling into objects.
Most bolts and screws require one of the most common simple tools-a screwdriver.