Brass Serrated Lock Washers—Type A,With External Teeth

Material::Spring steel(65Mn,60Si2Mna). Stainless steel(304,316L). Stainless steel(420).
Hardness: HRC:44-51, HY:435-530
Surface treatment: blackening
Material properties: it is a wider use of carbon spring steel, compared with 65 steel, with high strength, hardness, elasticity, and hardenability, critical quenching diameter in the water is generally 30 ~ 50mm, and the oil is generally 16-32mm, heat treatment with overheating sensitivity and tempering brittleness tendency, water quenching is easy to crack, the general use of oil quenching, the cross-sectional size of > 80 should be quenched and oil-cooled water quenching: annealing cutting is still good, but cold deformation plasticity is low, and the section size is preferred to water quenching But the cold deformation plasticity is low, poor welding performance. This steel is generally used by pure fire, medium temperature tempering.     

Serrated washers are used in small parts to play the role of the spring, and its size and its use together with the three-dimensional sheet metal stamping
The size of the fastening screws and self-tapping screws used with the 3D sheet metal stamping are about the same size. Serrated washers are mainly used to prevent the bolt from loosening.    

Size Can also be According to the Customer's requirement please check the detailed specification sheet details PDF， CAD, 63-64 Page See more product details.    

Packing: The inner packaging consists of polyfoam, while the outer layer is a carton. The carton sizes are 29*19*19.5 cm and 23.5*17.5*8 cm, respectively. The pallet dimensions are 215*100*90 cm, or they can be customized according to your requirements.