Flat washers, washers for high-strength bolts, can be customized to special sizes, high precision [improved flatness and surface roughness], and we can propose solutions to prevent rotation.
Special Washers Flat washers, washers for high-strength bolts, and custom sizes are available. High precision [improved flatness and surface roughness] and proposals to prevent rotation can be provided. "Flat washers" are handled by Special Spring Industry Co., Ltd., which manufactures and sells thin plate springs, washers, functional springs, and more. Our products are used as flat washers for high-strength bolts and in automotive suspension systems. They reduce seating pressure and prevent loosening due to sinking. 【Features】 ■ Used for flat washers for high-strength bolts, etc. ■ Reduces seating pressure ■ Prevents loosening due to sinking *For more details, please refer to the catalog or feel free to contact us.
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We have a track record of supplying major domestic and overseas screw and bolt manufacturers. *For more details, please refer to the catalog or feel free to contact us.*
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Product Introduction [Washers, spacers, plates, retaining rings, disc springs, coil waves, eccentric and concentric snap rings, shims, flat springs, various sliding parts, press parts] Processing Technology [Progressive press processing, multi-forming, fine groove press processing, pressing of sintered, machined, and fine blanking products, austempering] Features and Technology [Fine groove processing, fine hole processing, thickening processing, irregular wire processing, high precision plate thickness, miniaturization proposals, in-house mold production, heat-resistant steel, handling of JIS products, friction coefficient reduction, independent prototyping, unit performance improvement] Our company boasts high quality with manufacturing technology cultivated over nearly 80 years, guided by the motto "Let's be particular about manufacturing, let's earn trust." We have a world-class sales volume of washers (570 million pieces/month), with major Japanese automotive companies as primary users. The sales department, development and technology division, quality assurance division, and manufacturing division collaborate from development to design, prototyping, and mass production to create products that satisfy our customers. This comprehensive strength is our company's advantage. We are investing management resources into the manufacturing and sales of high value-added products that require advanced manufacturing technology, such as precision plates with micron-level oil grooves (components for electromagnetic clutches), aiming for business expansion.