The short blackened carbon steel carriage bolt is a short carriage bolt made mainly of carbon steel with a blackened surface. Its short design makes it suitable for installation scenarios with limited space, such as some small devices or compact component connections. The carbon steel material gives it good mechanical properties, such as high strength and toughness, and can withstand certain tensile and shear forces. The blackening treatment forms a black oxide film on its surface, which improves the wear resistance and rust resistance of the bolt to a certain extent, and also gives the bolt a rustic appearance.

Product Application

Due to its short design, its length is usually determined according to the specific application requirements, which may range from a few millimeters to more than ten millimeters. It is widely used in the assembly of small machinery, electronic product housings, or the fixing of precision instruments that require precise control of the bolt length. For example, in the fixing of the housing of a small motor, the short bolt can effectively fix the housing together without affecting the internal structural space of the motor. When the circuit board of some electronic products is fixed to the housing, the short blackened carbon steel carriage bolt can also play a good role because its length will not interfere with the layout of other components on the circuit board.

Product Feature

Compared with stainless steel carriage bolts, short blackened carbon steel carriage bolts are cheaper and more economically advantageous in some projects that do not require high anti-rust properties and have limited budgets. Compared with ordinary carbon steel bolts (non-blackened), its surface blackening treatment improves its wear resistance and rust resistance, making it more suitable for use in environments with slight friction or slightly high humidity. For example, in the connection of some small indoor wood products, blackening can reduce the damage to the bolt surface caused by wood friction, and to a certain extent resist the risk of rust caused by changes in indoor humidity.