Flat Washers Manufacturer, Exporter & Supplier in India

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About Dipti Metal Industries

Established in 2009 by Mr. Kumpsingh Rajput, Dipti Metal Industries is a globally trusted flat washer manufacturer, flat washer exporter, flat washer supplier, flat washer stockist & dealer of Flat Washers. Headquartered in Mumbai, India, we deliver high-performance washers to more than 40+ countries including the USA, UK, Germany, France, Italy, UAE, Saudi Arabia, Singapore, South Africa, and Brazil under the brand name “Dipti.”

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What Are Flat Washers?

Flat washers are thin, circular discs with a central hole, placed under bolts or nuts to:

• Distribute loads evenly

• Protect surfaces from damage

• Prevent loosening of fasteners

• Provide spacing in assemblies

They are widely used across construction, automotive, aerospace, shipbuilding, petrochemical, and machinery industries.

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International Standards for Flat Washers

We manufacture washers conforming to all major ISO, DIN, UNI, BS, ASTM, IS, JIS and other international standards:

• ISO Standards flat washer:
  ISO 7089, ISO 7090, ISO 7091, ISO 7092, ISO 7093-1/2, ISO 7094, ISO 7095, ISO 7096, ISO 7098, ISO 8738

• DIN Standards flat washer:
  DIN 125 A/B, DIN 126, DIN 433, DIN 434, DIN 440, DIN 6916, DIN 7349, DIN 7989, DIN 9021

• UNI Standards (Italy) flat washer:
  UNI 6592, UNI 6593, UNI 6594, UNI 6595, UNI 6596 (equivalents to DIN/ISO forms)

• BS Standards (UK) flat washer:
  BS 4320 (Form A, B, C, D, G)
  BS 3410, BS 4183

• IS Standards (India) flat washer:
  IS 2016, IS 2017, IS 5369, IS 5370 (Indian equivalents for plain & heavy washers)

• ASTM Standards (USA) flat washer:
  ASTM F436, ASTM F844, ASTM F959, ASTM A193 B6 / B7 compatible washers

• JIS Standards (Japan) flat washer:
  JIS B 1256 (plain washers), JIS B 1258 (large series washers), JIS B 1261 (spring washers)

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Grades of Flat Washers

We supply flat washers in all major grades and materials, meeting diverse international requirements:

Carbon Steel Flat Washers

• Grades: IS 2062 Gr A/B/C, ASTM A36, A105, A350 LF2

• Equivalent: DIN C22.8, P245GH, EN 10025

Stainless Steel Flat Washers

• Austenitic Grades: AISI 304, 304L, 316, 316L, 310, 321, 347

• Ferritic Grades: 410, 430

• Duplex/Super Duplex: 2205 (UNS S31803/S32205), 2507 (UNS S32750/S32760)

• Equivalent DIN/EN: 1.4301, 1.4307, 1.4401, 1.4404, 1.4462, 1.4410

Alloy Steel Flat Washers

• ASTM/ASME: A182 F1, F5, F9, F11, F22, F91

• DIN: 13CrMo44, 10CrMo910, 16Mo3

Nickel Alloy Flat Washers

• Inconel: 600, 625, 718

• Monel: 400, K500

• Hastelloy: C22, C276, B2

• Nickel 200/201

Titanium Flat Washers

• ASTM B265 Gr. 2, Gr. 5, Gr. 7, Gr. 12

Copper Alloys Flat Washers

• Brass: CZ121, CZ122

• Bronze: C83600, C95400

• Copper: C10100, C11000

Aluminium Flat Washers

• 6061, 6082, AlMgSi1

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Applications of Flat Washers

• Oil & Gas Pipelines – For load distribution and sealing

• Automotive Industry – For vibration resistance and assembly security

• Construction & Infrastructure – For structural fastening

• Electrical & Electronics – For insulation and tight fastening

• Marine & Chemical – Corrosion-resistant fasteners for harsh environments

• Heavy Engineering – For bolted joints under dynamic load

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Why Choose Dipti Metal Industries?

• 🌍 Exporting to 40+ countries worldwide

• 🏭 Full compliance with ISO, DIN, ASTM, UNI, BS, IS, JIS standards

• ⚡ Large ready stock for urgent requirements

• ✅ 3.1 / 3.2 Mill Test Certificates provided

• 🔧 Customized dimensions, grades, and coatings (HDG, zinc-plated, PTFE, cadmium)

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Conclusion

Flat Washers from Dipti Metal Industries are engineered for strength, reliability, and precision. With world-class manufacturing, international certifications, and global exports, we are among the leading flat washer manufacturers and suppliers in India, serving industries worldwide with unmatched quality.