SEAIN Industry Co. Ltd. is the largest washer manufacturer in Korea, with a reputation for quality and trust that has been built over 35 years. The company offers a wide range of washer products, including flat washers, conical washers, square washers, snap rings, wave washers, special washers, valve washers, and steel bands.

Flat washers are typically used to distribute the load of a threaded fastener and prevent damage to the surface being fastened. Conical washers provide a spring-like action when compressed, making them ideal for applications where vibration or movement is a concern. Square washers have a square shape and are often used in construction and woodworking projects.

Snap rings are used to secure components onto a shaft or in a housing, providing a retaining function. Wave washers provide a spring-like action in applications where space is limited. Special washers are customized to meet specific requirements and are often used in unique or specialized applications.