Jiaxing Aoke is a Chinese factory to produce DIN6797 toothed lock washer, our factory has obtained ISO9001 certificate. DIN6797A external toothed lock washers and DIN6797J internal toothed lock washers are the most commonly used during assembly. The function of the DIN 6797 toothed locking washer is to prevent the threads from loosening due to vibration and impact. DIN 6797 series lock washers are non-spring self-locking washers. Their core locking principle is achieved through precision-machined serrations on the washer surface, rather than elastic deformation. The working principle of the DIN6797 toothed washer is that when the bolt or nut is tightened, the DIN6797 teeth lock washer is forced to generate pressure, and the bite effect of the serrations prevents the thread from loosening due to vibration and load, thereby achieving an anti-loosening effect.
Jiaxing Aoke warmly welcome you to wholesale DIN7980 spring washers from our factory. We have a large amount of factory inventory. DIN7980 spring washers are specifically designed to prevent loosening of DIN912 hexagon socket head screws. Compared to DIN127 spring washers, DIN7980 washers have a smaller outer diameter. AOKE manufactures DIN7980 washers with precise dimensions, maintaining tight tolerances for outer diameter and thickness. When the bolt is tightened, the DIN7980 spring washer is compressed, generating a continuous axial spring force that offsets the loss of bolt preload due to vibration and temperature fluctuations. Stainless steel A2 DIN7980 spring lock washers are used in humid environments and outdoor equipment. For highly corrosive environments (such as coastal areas and chemical plants), 316L DIN7980 lock washers are recommended. They contain 2%-3% molybdenum and are resistant to long-term corrosion from seawater and weak acids.
Standard |
DIN6797A,DIN6797J,DIN6797V |
Material |
65Mn,SS304,SS316 |
Surface Treatment |
Plain, Passivation,Galvanizing, Zinc-Nickel Plated, phosphating |
Size |
M2-M30 |
Grade |
A2 A4 |
Unite |
Piece |
Packing |
Bulk cartons with pallet, small boxes in cartons with pallet |
Lead time |
Busy season:20-30days,Slack season:10-20days |
DIN6797 toothed lock washer is widely used in heavy Industry, mining, water treatment, healthcare, retail industry, general industry, machinery, Oil & Gas, automotive industry etc.