DIN125 Stainless Steel Flat Washers SS304 SS316 A2 A4 for Industrial Fastening
This product is a DIN125 flat washer designed to be installed between a bolt head or nut and the connected surface. Its primary function is to distribute tightening pressure over a wider contact area, helping reduce surface damage and improving the stability of bolted connections.The product is suitable for heavy industry, general industrial applications, automotive use and retail fastening distribution.
Specification Table
| Item | Product Information |
|---|---|
| Product Type | Flat washer |
| Material | Carbon steel/stainless steel alloy |
| Listed Grade Options | 4.8, 8.8, 10.9 and 12.9 |
| Standard | DIN ANISI |
| Metric Thread Sizes | M2, M3, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M24 and M30 |
| Thickness Options | 1 mm, 2 mm, 4 mm, 5 mm, 1 inch and 2 inch |
| Custom Thickness | Available as a customization option |
| Washer Style | Flat washer; spring washer is also listed as an available type |
| Core Surface Options | Black, zinc and Plain |
| Additional Surface Options | White zinc, yellow zinc and hot‑dip galvanized |
| Application Industries | Heavy industry, retail, general industrial and automotive |
| Place of Origin | Hebei, Handan, China |
The product information includes several material, grade, thickness and finish selections. The appropriate combination should be selected according to the required washer size, connected fastener, installation environment and order specification.
Surface Treatment Options
- Plain Finish The Plain finish is one of the core surface options. It is suitable for protected indoor assemblies, general machinery installation and applications where the washer will not be exposed to severe environmental conditions.
- Black Finish The black finish is listed as a surface option for the product. It can be used where a darker appearance is preferred or where the washer is being matched with black or dark‑finished fasteners.
- Zinc Finish Zinc treatment provides a protective surface for general industrial fastening, equipment frames, brackets and other applications where additional surface protection is required.
- White Zinc White zinc is listed in the detailed surface treatment information. It provides a light‑colored finish for general equipment, machinery and construction fastening applications.
- Yellow Zinc Yellow zinc provides a yellow‑gold appearance and can be selected for general industrial and construction assemblies where a colored zinc finish is preferred.
- Hot‑Dip Galvanized Hot‑dip galvanized treatment is also listed as an available finish. It may be selected for outdoor steelwork, support structures, automotive components and other applications requiring a more protective coated surface.
The washer surface should be selected to match the connected bolt, nut, base material and service environment.
Application
- Machinery Assembly Flat washers are commonly used under bolt heads and nuts when fastening machine frames, covers, brackets, guards, panels and support components. They help spread the load over the contact surface during tightening.
- Industrial Equipment The washer can be used in industrial equipment, production machinery, mounting systems, conveyor assemblies and metal support structures where a stable detachable joint is required.
- Automotive Applications The listed automotive application range supports use in vehicle components, repair assemblies, brackets, support parts and general automotive fastening work. The selected washer material and finish should match the vehicle component and fastening environment.
- Steel Structures Washers can be installed with structural bolts, nuts and brackets to help distribute load across steel plates and connection points. Zinc or hot‑dip galvanized options can be considered for coated steel assemblies.
- General Maintenance The broad M2‑M30 size range supports repair, maintenance and replacement work for equipment, frames, machinery and industrial fixtures.
- Retail and Distribution The wide material, size, thickness and surface treatment range makes the product suitable for hardware wholesalers, fastener distributors and industrial supply retailers.
Matching Fasteners
| Washer Size Range | Matching Fasteners | Typical Use |
|---|---|---|
| M2‑M5 | Matching metric bolts, screws and nuts | Small equipment, panels and light brackets |
| M6‑M8 | Matching metric hex bolts, screws, nuts and threaded components | General machinery and support assemblies |
| M10‑M16 | Matching metric bolts, nuts and spring washers | Structural brackets and equipment frames |
| M18‑M24 | Matching large metric bolts and heavy‑duty nuts | Industrial structures and high‑load connections |
| M30 | Matching M30 bolts, nuts and structural fastening sets | Large equipment and heavy steel assemblies |
| Inch‑Based Sizes | Matching inch‑thread bolts, nuts and washers | Applications using inch‑based fastening systems |
Flat washers can be combined with hex bolts, socket screws, threaded rods, hex nuts and lock nuts. Spring washers may be used together with flat washers when the assembly design requires an additional locking or preload‑support component.
For stainless steel assemblies, stainless steel bolts and nuts can be paired with A2, A4, SS304 or SS316 washer options. For coated carbon steel structures, zinc or hot‑dip galvanized washers should be matched with compatible coated fasteners.
Packing & Delivery
The listed packaging arrangement supports customized bags, cartons and pallets. Bulk packing can be selected according to washer size, material, finish, order quantity and shipping method.
The reference package size is 30 × 40 × 30 cm, with a reference gross weight of 25.0 kg. The actual package quantity and weight may vary according to the selected washer dimensions and material.
The listed minimum order quantity is 10,000,000 pieces. Customized logo, packaging and graphic requirements can be discussed for bulk orders with a minimum customization quantity of 100,000 pieces.
For products in stock, the stated delivery reference is generally 5‑10 days. When production is required, the stated delivery reference is generally 15‑20 days depending on the order quantity.
Samples can be discussed when the washer material, size, thickness or finish needs to be checked before bulk production. Sample freight arrangements should be confirmed separately.
FAQ
1.What type of washer is this?
The product is identified as a DIN125 flat washer. Spring washer is also listed as an available washer type, so the required washer configuration should be selected according to the order specification.
2.What materials are available?
The listed material options include brass, stainless steel, steel, aluminum, alloy, carbon steel and stainless steel alloy.
3.Are SS304 and SS316 available?
SS304 and SS316 are included in the product title information. A2 and A4 options are also listed.
4.Which sizes are available?
The listed metric size range includes M2, M3, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M24 and M30.
5.What thicknesses are available?
The listed thickness options are 1 mm, 2 mm, 4 mm, 5 mm, 1 inch and 2 inch. Customized thickness is also available as an option.
6.What surface treatments are available?
The core surface options are black, zinc and Plain. Additional listed finishes include white zinc, yellow zinc and hot‑dip galvanized.
7.What grades are listed?
The detailed product information lists 4.8, 8.8, 10.9 and 12.9 grade options. The correct grade should be selected according to the associated fastener system and order requirements.
8.What products can be used with these washers?
They can be used with matching metric bolts, hex bolts, screws, nuts, threaded rods and selected spring washers.
9.Can the packaging be customized?
Yes. Bags, cartons and pallets are listed for customized packaging requirements. Customized logo, packaging and graphics can also be discussed for bulk orders.
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