A lock washer, also known as a locking washer or spring washer, is a type of mechanical fastener used to prevent loosening of threaded connections. Here is a detailed introduction:
A lock washer is typically a thin, circular metal disk with a split or a series of tabs around its circumference. The split or tabs are designed to deform slightly when the washer is installed, creating a spring - like action.
The main function of a lock washer is to provide a constant force that resists the rotation of the nut or bolt. When the threaded connection is tightened, the lock washer is compressed between the nut or bolt head and the surface of the object being fastened. As the nut or bolt tries to loosen due to vibration, shock, or other external forces, the deformed lock washer exerts a counter - force that helps to keep the connection tight.
External Tooth Lock Washers: These have teeth on the outer diameter that dig into the mating surfaces to prevent rotation. They are often used in applications where a high - level of locking force is required.
Internal Tooth Lock Washers: The teeth are on the inner diameter of the washer. They are suitable for use with nuts and bolts where the outer surface of the bolt needs to remain smooth.
Wave Lock Washers: Have a wavy or undulating shape, providing a spring - like action to maintain tension in the connection. They are commonly used in applications where space is limited or where a more flexible locking mechanism is needed.
Lock washers are widely used in various industries and applications, including automotive, machinery, construction, and electronics. They are used to secure engine components, fasten machinery parts, assemble building structures, and hold electronic components in place. In any situation where threaded connections need to be kept secure and prevent loosening, lock washers play a crucial role.
In summary, lock washers are an important type of fastener that helps to ensure the reliability and safety of threaded connections by preventing them from loosening under various operating conditions.
External Tooth Lock Washers
M5-M20 Internal Tooth Lock Washer
M3-M20 Black Oxide Internal Slotted Lock washer
DIN137b Curved Washer Wave Spring Washer
High Tensile Steel Curved Washer
DIN 9250 Safety Lock Washer
DIN 25201 Wedge Lock Washer
DIN 6795 Grounding Washers
DIN 9250 S/Vs Safety Lock Washer
Carbon Steel Galvanized and Stainless Steel
Size M6 up to M20
Standards (DIN/EN ISO/ANSI/ASME B18.21.1)
Or customized specifications
More options DIN6797 DIN6798 external, internal
Tooth lock washers, material by Carbon Steel, SS304
SS316 stainless steel
