| Size | Imperial Size: 3/8 to 8″, Metric Size: M10 to M100 |
|---|---|
| Type | Washer, Bolt, Nut, Screw, Rivet, Threaded Rod, Studs, Coated, Nails, Custom Fasteners |
| Standard | Din, Iso, Astm, Jis, Gb, Is, Bs |
| Length | 3 mm to 200 mm |
| Material | Stainless Steel, Monel, Inconel, Hastelloy, Incoloy, Nickel, Silicon Bronze, Phosphor Bronze |
Washers Manufacturer & Supplier – SS 304/304L, 316/316L, 310, 321, 410, Carbon Steel (A36/A105), Alloy Steel (F5/F9/F11/F22), Duplex 2205, Super Duplex 2507, Inconel 625/718, Monel 400, Hastelloy C276
Washer Weight Chart in KG, MM, PDF
| Nominal Size | Inner Dia (mm) | Outer Dia (mm) | Thickness (mm) | Weight (Kg / 1000 Pcs) |
|---|---|---|---|---|
| M6 | 6.4 | 12 | 1.6 | 2.20 |
| M8 | 8.4 | 16 | 1.6 | 3.80 |
| M10 | 10.5 | 20 | 2.0 | 8.10 |
| M12 | 13 | 24 | 2.5 | 14.50 |
| M16 | 17 | 30 | 3.0 | 29.80 |
| M20 | 21 | 37 | 3.0 | 45.60 |
| M24 | 25 | 44 | 4.0 | 92.40 |
| M30 | 31 | 56 | 4.0 | 152.00 |
| M36 | 37 | 66 | 5.0 | 260.00 |
Washer Grade Table
| Material Category | Grade | Standard | Common Applications |
|---|---|---|---|
| Stainless Steel Washers | SS 304 / 304L | ASTM A240 / A276 | General industrial, construction, fabrication |
| SS 316 / 316L | ASTM A240 / A276 | Marine, chemical, offshore | |
| SS 310 | ASTM A240 | High temperature applications | |
| SS 321 | ASTM A240 | Heat resistant equipment | |
| SS 410 | ASTM A276 | Automotive, structural | |
| Carbon Steel Washers | ASTM A36 | ASTM Standard | Structural & general engineering |
| ASTM A105 | ASTM Standard | Piping & pressure applications | |
| Alloy Steel Washers | ASTM A182 F5 | ASTM Standard | Power plants, refineries |
| ASTM A182 F9 | ASTM Standard | High temperature service | |
| ASTM A182 F11 | ASTM Standard | Pressure systems | |
| ASTM A182 F22 | ASTM Standard | Petrochemical industries | |
| Duplex Steel Washers | UNS S31803 (2205) | ASTM A240 | Oil & gas, marine |
| Super Duplex Washers | UNS S32750 (2507) | ASTM A240 | Offshore & chemical plants |
| Nickel Alloy Washers | Inconel 625 | ASTM B443 | High strength, corrosion resistance |
| Inconel 718 | ASTM B637 | Aerospace, high pressure | |
| Monel 400 | ASTM B164 | Marine & saltwater | |
| Hastelloy C276 | ASTM B574 | Chemical processing | |
| Titanium Washers | Grade 2 | ASTM B348 | Marine, aerospace |
| Grade 5 (Ti-6Al-4V) | ASTM B348 | High strength applications | |
| Copper Alloy Washers | Copper Nickel 90/10 | ASTM B151 | Marine piping |
| Copper Nickel 70/30 | ASTM B151 | Offshore systems | |
| Brass | ASTM B16 | Plumbing, decorative |
To satisfy a variety of application needs in the heavy engineering, petrochemical, construction, oil and gas, maritime, and power generating sectors, industrial washers are produced in a broad range of material grades. While carbon steel grades like ASTM A36 and A105 give strength for structural purposes, stainless steel grades like SS 304, 316, 310, 321, and 410 offer exceptional corrosion resistance and durability. High-temperature and high-pressure systems frequently use alloy steel grades such as ASTM A182 F5, F9, F11, and F22. In hazardous and offshore settings, Duplex 2205 and Super Duplex 2507 washers are recommended because to their exceptional corrosion resistance.
Type of Sub-products

Plain Washers Plain Washers
Provide a smooth bearing surface to distribute load and reduce surface wear under fasteners.

Spring Washers Spring Washers
Designed to prevent loosening of fasteners by exerting continuous pressure and absorbing vibrations.
