Butterfly Washer

Disc spring washers DIN6796 - Tapered spring washers
Disc spring washers, referred to as disc washers, disc washers, heavy duty bolted washers, and tapered spring washers.
Name： Disc spring washers DIN6796
Main material: S60C.65Mn.60Si2Mn.50CrVA or SUS304.316 (A2.A4) and other special customized materials.
Surface treatment: Stainless steel hardened and polished in its original color or spring steel phosphate black, mechanically galvanized, nickel plated, Dacromet coated. (Manufacturing requirements: 42-52HRC)
Common specifications: M2 - M125, M42 and above need to be customized    

German standard DIN6796 disc washers, also known as "conical elastic washers", "disc spring washers", or "bowl washers", the shape of the spring such as a disc, the washer is pressed flat and its load is 70-90% of the bolt load, suitable for 8,8-12,9 grade high strength bolts. The load of the washer when pressed is 70-90% of the load of the bolt, and it is suitable for high-strength bolts of grades 8,8 12,9. Disc washers are used to compensate for the formation of settlement in the screw connection to prevent the connection from loosening, and to compensate for wear and tear, creep, thermal expansion, contraction, and compression of the seals of the wearing parts.DIN6796 disc washers are similar to the standard NFE 25510 disc washers, DIN6908 disc washers for assembled parts, and DIN2093.
Disc spring washer product quality is strictly enforced DIN6796 and JB/ZQ4010.ISO10670 standards, the material used in high-quality spring steel 60Si2MnA.50CrVA.SK5 or ordinary spring steel 65MN, etc., such as customer demand can also be made of special materials, such as stainless steel materials, ordinary stainless steel: 301, 304; precipitation hardening stainless steel 17-7PH, 15-5PHMo, 30W4Cr2v, GH145, GH718, etc.; special materials need to be booked. All the products are treated with strict elastic hardening, which absolutely guarantees the mechanical properties and anti-loosening effect of the products. German standard DIN6796 standard production and manufacture of disc spring washers with high fatigue life, small deformation, and high load-carrying capacity, is the perfect choice for bolt connection.
Advantages and features: high axial load, high fatigue life, high load drop (caused by temperature difference) compensation, effective reduction of the negative impact of dynamic load, anti-loosening locking, high elasticity, load concentration uniformity, and high safety.
Application: This product is now widely used in electrical appliances, elevators, towers, mechanical equipment, and medical machinery products supporting disc-type improved fastener products, The quality is in line with the German standard DIN6796 disc spring standard.   

Size Can also be According to the Customer's requirement please check the detailed specification sheet details PDF， CAD, 25-26Page 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.