Inconel 625 External Tooth Lock Washer
Inconel 625 External Tooth Lock Washers are precision-engineered from Nickel-Chromium alloy 625 (UNS
N06625 / 2.4856 / NiCr22Mo9Nb), delivering superior performance in corrosive and high-temperature
environments. Designed with sharp, outward-facing teeth that grip mating surfaces, these washers provide
excellent vibration resistance and secure bolted joints in dynamic conditions.
Available in Metric (M1.6 to M64) and Inch (#0 to 3”) sizes, they meet a wide range of dimensional standards including DIN 6797 A, ASME B18.21.2M, SAE J489B, JIS B 1251, and others. These washers are manufactured in compliance with international material standards like ASTM B443, ISO 6028, and EN 10095 for ensured durability and quality.
Widely used in marine, chemical, offshore, heat exchangers, and aerospace sectors, all washers are produced in India by FERROBEND and come with certifications such as EN 10204 3.1/3.2, NACE MR0175, ISO 15156, and more.
Please visit the Specification page for detailed information on Inconel 625 External Tooth Lock Washer, including chemical composition, heat treatment processes, mechanical properties like tensile strength, yield strength, hardness requirements, product markings, and relevant manufacturing standards.
For a fast quote on Inconel 625 External Tooth Lock Washer, feel free to reach out to our sales team at estimation@ferrobend.com
Inconel 625 External Tooth Lock Washers
| Category | Details |
|---|---|
| Product Name | Inconel 625 External Tooth Lock Washer |
| Material Grade / Equivalent | Inconel® 625 – UNS N06625, 2.4856, NiCr22Mo9Nb |
| Dimensional Standards | DIN 6797 A, DIN 6907, UNI 8842 Form A, IFI 532, ASME B18.22.1, ASME B18.21.2M, SAE J489B, JIS B 1251, SAE J 2655 |
| Material Specifications | ASTM B443 (Plate/Sheet), ISO 6028, EN 10095, ISO and DIN equivalents on request |
| Type / Style | External Tooth – Single and Multiple Toothed, Plate Stamped |
| Size Range | Metric: M1.6 to M64 / Imperial: #0 to 3” |
| Corrosion Resistance | Excellent in seawater, chlorides, acids, and high-temperature oxidizing/reducing environments |
| Surface Finish | Plain / Passivated / Zinc Coated / PTFE Coated / Custom as required |
| Applications | Aerospace, Marine, Offshore, Chemical Processing, Heat Exchangers, Pumps, Turbines, Structural Use |
| Manufacturing Origin | India |
| Brand / Manufacturer | FERROBEND – Indian Manufacturer & Global Exporter |
| Certifications Available | EN 10204 3.1 / 3.2, NACE MR0175, ISO 15156, ASTM, COC, COO |
Dimensional Standards for External Tooth Lock Washers
| Standard | Region / Body | Description |
|---|---|---|
| DIN 6797 A | DIN (Germany) | External tooth lock washers with sharp, radial teeth for high locking efficiency |
| DIN 6797 V | DIN (Germany) | External tooth lock washers with curved or wave-shaped teeth |
| DIN 6907 | DIN (Germany) | Lock washers with external teeth for electrical contact and vibration resistance |
| UNI 8842 Form A | UNI (Italy) | External toothed washers – flat, circular teeth for locking action |
| UNI 8842 Form V | UNI (Italy) | Curved external toothed washers for enhanced spring effect |
| IFI 532 | IFI (USA) | Industrial fastener standards for external tooth lock washers |
| ASME B18.22.1 | ASME (USA) | General specification for plain and lock washers |
| ASME B18.21.2M | ASME (USA) | Metric lock washers including external tooth type |
| SAE J489B | SAE (USA) | Lock washers for automotive and aerospace fasteners |
| JIS B 1251 | JIS (Japan) | Lock washers – external tooth, standardized for mechanical use |
| JIS B 1255 | JIS (Japan) | Lock washers – spring type and external tooth type |
| SAE J 2655 | SAE (USA) | Lock washer performance and dimensional requirements |