Harshvijay Exim OPC Private Limited is based in India and established in 2013. The company lists Disc Spring Washer, Wedge Lock washers, Belleville Washer, Serrated Lock Washer, and Conical Spring Washer on Global Trade Plaza. Disc Spring Washers are described as conically formed angular discs made from materials including spring steel grade 50CrV4 / 51CrV4, stainless steel 301, 304, 316, precipitation hardened 17-7, Inconel 750 and 718, with sizes from outer diameter 6 mm to 350 mm and thickness 0.4 mm to 16 mm. Belleville Washers and Conical Spring Washers are manufactured as per DIN 6796 and DIN 2093, used in heavy bolted sections such as transformers, rectifiers, and transmissions. Wedge Lock washers are designed to secure bolted joints under extreme vibration using tension rather than friction. Serrated Lock washers increase friction by gripping mating surfaces. Buyers can send an enquiry through Global Trade Plaza.