The types of threaded sleeves mainly include the following:
Straight thread connection sleeve: The straight thread connection sleeve is a very practical connection tool, which is widely used in structures such as buildings and subways. It has many types, including D type (gallium rough straight thread), B type (rib stripping rolling), G type (direct rolling), Z type (taper thread) and J type (extrusion). These types of straight thread connection sleeves are usually made of 45 steel and have high precision and quality reliability.
Rolled straight thread sleeve: The rolled straight thread sleeve is divided into direct rolled straight thread sleeve, rib stripping rolled straight thread sleeve and upset straight thread sleeve. This sleeve is formed by biting the special straight thread at the end of the steel bar and the straight thread sleeve to form an integral connection, which is suitable for steel bar connections with a diameter of Φ16 to Φ40.
Spiral sleeve: The spiral sleeve is mainly used to remove rusted, damaged or rounded nuts and bolts. The interior is a special six-edged/12-edged conical reverse spiral groove, which can firmly bite the nut, so as to laboriously unscrew rusted or damaged nuts and bolts.
Threaded sleeve: Threaded sleeve (also known as threaded sleeve, threaded sleeve, wire threaded sleeve, etc.) is a high-strength, high-precision stainless steel spiral coil used to form high-precision internal and external thread concentric bodies. Its various performances are better than the threads formed by tapping, and it is widely used in occasions requiring high-precision threads.
