ASTM A240 Type 304 Washers are stainless steel washers manufactured from Type 304 stainless steel material supplied in accordance with ASTM A240 requirements. These washers are designed to distribute the load of a fastener over a larger surface area, helping protect the connected material and improving the stability of bolted and screwed joints. Type 304 stainless steel is an austenitic chromium-nickel grade recognized for its corrosion resistance, strength, formability, and suitability for a broad range of industrial environments.
At Real Fasteners, ASTM A240 Type 304 Washers are available for applications where dependable fastening performance and resistance to atmospheric and process-related corrosion are important. The material offers good resistance to oxidation and many common corrosive environments while maintaining useful mechanical properties over a wide range of applications. Washers can be supplied in different outside diameters, inside diameters, thicknesses, finishes, and configurations according to project requirements.
ASTM A240 is primarily a material specification covering chromium and chromium-nickel stainless steel plate, sheet, and strip for pressure vessels and general applications. When washers are produced from ASTM A240 Type 304 material, the dimensional and product requirements can additionally be specified according to the applicable washer standard, drawing, or customer specification. This distinction is important for engineers and procurement teams when preparing technical purchase requirements.
One of the major advantages of ASTM A240 Type 304 Washers is their corrosion resistance. The chromium content of Type 304 stainless steel helps form a passive surface layer that provides protection against many atmospheric and mildly corrosive conditions. This makes the washers suitable for indoor and outdoor assemblies where ordinary carbon steel washers may require additional surface protection.
ASTM A240 Type 304 Washers also provide reliable load distribution. By increasing the bearing area beneath a bolt head or nut, a washer can help reduce localized surface pressure and minimize the possibility of damage to the connected component. This is particularly useful when fastening components made from comparatively softer materials or when the joint requires controlled and uniform load distribution.
Another important benefit is the combination of strength and formability offered by Type 304 stainless steel. The material can be manufactured into precision washer configurations while maintaining the properties required for common fastening applications. Its non-coated stainless surface also eliminates dependence on a separate protective coating for many general-purpose environments.
Type 304 stainless steel is also widely available and familiar to engineers, fabricators, and procurement professionals worldwide. This broad industry acceptance makes ASTM A240 Type 304 Washers a practical choice for standard maintenance requirements, OEM assemblies, construction projects, fabrication work, and industrial equipment.
The washers can also be supplied with different surface finishes depending on the intended application and manufacturing process. Dimensions such as inner diameter, outer diameter, and thickness can be selected according to the mating fastener and joint design. Custom sizes and packaging arrangements may be available for volume orders and specialized requirements.
ASTM A240 Type 304 Washers Manufacturers supply these stainless steel washers for general engineering, fabrication, machinery, equipment assembly, and maintenance applications. Their corrosion resistance and load-distribution capability make them useful for securing bolts, screws, nuts, and other threaded fastening components in assemblies where dependable joint performance is required.
ASTM A240 Type 304 Washers Suppliers provide these washers for construction and infrastructure projects, including structural assemblies, equipment supports, architectural installations, and general metal fabrication. Type 304 stainless steel is particularly useful where fasteners are exposed to normal atmospheric conditions and where a durable, low-maintenance material is preferred.
ASTM A240 Type 304 Washers Stockists maintain various sizes and configurations for industrial maintenance, replacement requirements, OEM production, and workshop applications. These washers can be used in pumps, valves, machinery, processing equipment, electrical enclosures, fabricated structures, and general mechanical assemblies where stainless steel fastening components are required.
ASTM A240 Type 304 Washers Exporters serve international buyers requiring stainless steel washers for engineering, marine-adjacent, food-processing, chemical, construction, and industrial applications. Real Fasteners can support customized requirements involving dimensions, quantities, packaging, inspection documentation, and applicable technical specifications for domestic and international procurement.
ASTM A240 Type 304 stainless steel is commonly selected for applications requiring a combination of corrosion resistance, strength, fabrication capability, and general industrial availability. For specialized environments involving high chloride exposure, strong reducing acids, or elevated corrosion demands, engineers should evaluate whether another stainless steel or alloy is more appropriate.
Real Fasteners can supply ASTM A240 Type 304 Washers according to specified dimensions and project requirements. Customers can request technical details such as washer dimensions, material certification, inspection requirements, surface finish, quantity, packaging, and applicable standards when placing an inquiry.
Real Fasteners focuses on supplying stainless steel fastening products for industrial and commercial requirements with attention to material selection, dimensional accuracy, product consistency, and customer specifications. ASTM A240 Type 304 Washers can be supplied in standard or customized dimensions depending on the application, fastener size, and purchasing requirement.
For engineering and procurement teams, selecting the correct washer involves more than choosing a material grade. The washer's inner diameter should accommodate the mating fastener, while its outside diameter and thickness should provide suitable bearing coverage for the joint. Environmental conditions, operating temperature, loading conditions, surface finish, and compatibility with adjoining materials should also be considered before final selection.
| Specification | Details |
|---|---|
| Product Name | ASTM A240 Type 304 Washers |
| Standard | ASTM A193 / ASME SA193 |
| Grade | Grade B8 |
| Material | Austenitic Stainless Steel |
| Common Material Type | Stainless Steel Type 304 |
| Nut Standard | ASTM A194 / ASME SA194 Grade 8, where applicable |
| Size | As per Customer Requirement |
| Thread Type | UNC, UNF, Metric or as per Customer Requirement |
| Thread Profile | As per Applicable Standard |
| Nut Type | Hex Nut / Heavy Hex Nut / As per Customer Requirement |
| Dimensions | ASME B18.2.1 / ASME B18.2.2 or as specified |
| Surface Finish | Plain, Pickled & Passivated or as per Customer Requirement |
| Manufacturing Process | Cold Forged, Hot Forged or Machined as applicable |
| Heat Treatment | As per ASTM A193 Grade B8 requirements |
| Marking | Manufacturer Identification, Grade and Applicable Marking Requirements |
| Testing | Dimensional Inspection, Mechanical Testing and Material Verification as applicable |
| Inspection | Third Party Inspection available as per Customer Requirement |
| Material Test Certificate | EN 10204 3.1 / 3.2 as required |
| Packaging | Bulk, Carton, Wooden Box, Pallet or as per Customer Requirement |
| Application | Oil & Gas, Petrochemical, Chemical Processing, Power Generation, Industrial Piping, Pressure Vessels and Marine Industries |