A fastener is a general term for a type of mechanical part used to fasten two or more parts (or components) into one piece. In automotive products, the number of fasteners is large and varied. In practical use, it is sim...
Fasteners are usually only a small part of the overall product structure, but they play an important role as an integral part of the product. From the perspective of the application of the world's fastening standard part...
The correct way of operation: (1) The nut must be screwed perpendicular to the axis of the screw, not to tilt; (2) During the tightening process, the force must be uniform, and the force should not exceed the safe torque...
The pan head and hex head tapping screws are suitable for applications where the drill bit is allowed to be exposed. The hex head tapping screw can be used with a larger torque than the pan head tapping screw. Countersun...
Self-tapping screws are often used for connections between thin metal sheets (steel plates, sawing boards, etc.). When connecting, first make a threaded bottom hole for the connected piece, and then screw the self-tappin...
Main geometric parameters of self-tapping and self-drilling threads: (1) Large diameter/tooth outer diameter (d1), which is the diameter of the imaginary cylinder where the thread crests coincide. The large diameter of t...
