Standard fasteners are divided into ten categories, and the selection should be determined according to the use occasions and functions of standard fasteners.
Determine category
1. Bolt: The bolt is generally matched with the nut (usually plus one washer or two washers), which is used for connection and fastening.
2. Nuts: Nuts and bolts are used together.
3. Screw: The screw is usually used alone (sometimes with a washer), and generally plays a role of tightening or tightening.
4. Studs: studs are generally threaded at both ends (single-end studs are threaded at one end), usually a rib is screwed into the body of the component, and the other end is matched with the nut to connect and tighten Function, but to a large extent also has a fixed distance effect.
5. Washer: The washer is used between the support surface of bolts, screws and nuts and the process support surface to prevent loosening and reduce the stress of the support surface.
Determine category
6. Self-tapping screw: The screw hole of the workpiece matched with the self-tapping screw does not need to be tapped in advance. While screwing in the self-tapping screw, the internal thread is formed.
7. Rivet: The rivet has a head at one end and no thread on the shaft. When in use, the rod is inserted into the hole of the connected piece, and then the end of the rod is riveted for connection or fastening.
8. Pin: The pin is inserted into the work piece when it is used, and usually plays a role of connection or positioning.
9. Retaining ring: Retaining ring is usually on the shaft or in the hole, which plays a role in limiting the axial direction of the workpiece.
10. Wood screws: Wood screws are used to screw into wood for connection or fastening.
Post time: Apr-16-2020