Customized bolts are generally non-standard shaped bolts. Bolts and screws can be divided into three types according to the thread: machine thread, self-tapping thread, and wooden thread. Machine bolts are often used in a part with a threaded hole, or used in conjunction with a nut, and the connecting parts are also easy to disassemble. Self-tapping screw refers to: the thread on the screw is a special self-tapping thread. A small hole needs to be made in the component in advance, which can be directly screwed into the hole of the component to form a responsive internal thread in the component. Wood screw: The thread on the screw is a special wood screw thread, which can be directly screwed into the wooden component (or part) to fasten a metal (or non-metal) part with a through hole to a wooden component connected together.

Qingdao Haorui Steel Products Co., Ltd. is a manufacturer of customized non-standard bolts in Qingdao. It is also a manufacturer that supports the production of customized special-shaped fasteners, special-shaped screws, and special-shaped nuts: mainly produces bolts, screws, and rivets with various tooth patterns. Various styles and specifications: wood screws, knurled rivets, slub bolts, slub rivets, trimmed hexagonal bolts and various non-standard large bolts, large nails, non-standard screws, etc. according to the drawings.