M1.6 (1.6mm) A2 Stainless Steel Form A Flat Washers

Flat Washers

Top quality stainless steel flat washers supplied straight from Warrington, UK. These washers are for metric bolts and screws.

Quality and durability are key factors to consider when choosing a washer for your project. Because of this, Speciality Metals offers M1.6 (1.6mm) A2 Stainless Steel Form A Flat Washers made from 304 Grade stainless steel. In addition to having excellent corrosion resistance and hygiene properties, these washers are perfect for use in the food and pharmaceutical industries. This type of washer is also versatile, as it has a sleek, low-profile design that makes it suitable for a variety of applications. Moreover, their low maintenance requirements ensure that they will last for a long time. Think about Speciality Metals’ M1.6 A2 Stainless Steel Form A Flat Washer if you need a washer that can withstand tough conditions.

Form A flat washers that are most used around the world.

Key product details:

• Standard – DIN 125A
• Fasteners Type – Form A Flat Washer
• Thread Diameter – M1.6
• Internal Diameter – 1.7mm
• Outer Diameter – 4mm
• Thickness – 0.3mm
• Metal – Stainless steel grade 304 (A2)

Speciality Metals are the best suppliers for you because:

• FREE UK delivery on all orders
• Order dispatch within 24 hours of order
• Located in Warrington, UK which is the UK home of mesh and metals
• Our experienced staff are experts in the mesh market and care personally about your customer experience

Speciality Metals is a trusted UK based distributor of fasteners, sheet metal, flat bar and round tube. We specialise in rapid delivery to any location around the country. Our team of experienced, friendly staff are at hand at all times to process your order.

FAQs About This Product

How do you Maintain Form A Flat Washers?

1. Regular Cleaning: Dust and grime can accumulate and may contain corrosive elements. Clean the washers with a mild detergent and warm water if they are exposed to such contaminants.

2. Avoid Chlorides: If the washers are used in environments where they may come into contact with chlorides (e.g., some cleaning agents, sea spray), it’s important to rinse them with fresh water to prevent potential corrosion.

3. Check for Signs of Corrosion: Periodically inspect for any signs of corrosion, especially if they are used in harsh environments like marine or chemical settings. Though 304-grade stainless steel is quite corrosion-resistant, it is not entirely immune.

4. Use Compatible Materials: If you’re using these washers with other materials, make sure those materials are compatible to avoid galvanic corrosion. For instance, using stainless steel washers with aluminum parts could lead to corrosion unless a barrier is used between them.

5. Storage: If you have surplus washers, it’s best to store them in a dry environment away from exposure to corrosive chemicals.

6. Tightening: Over-tightening can deform the washer and compromise its ability to distribute load or seal a joint. Always follow the torque specifications for your particular application.

7. Avoid Abrasives: If cleaning is required, avoid using abrasive pads or harsh chemicals that can scratch the surface and make it more susceptible to corrosion.

8. Lubrication: Though not usually required for the washers themselves, if they are part of a moving assembly, appropriate lubrication of the parts can prevent wear and tear.

9. Replacement: While stainless steel is durable, nothing lasts forever. In critical applications, have a schedule for routine replacement or at least for detailed integrity checks.

What is the Temperature Resistance of These Washers?

The temperature resistance of Stainless Steel 304 Form A Flat Washers is quite broad, making them suitable for a variety of applications. 304-grade stainless steel maintains its mechanical integrity at temperatures ranging from cryogenic levels up to approximately 870°C (1600°F). However, its resistance to oxidation and corrosion may decrease at elevated temperatures, particularly when exposed to corrosive environments at high heat. It’s important to note that prolonged exposure to temperatures above 425°C (800°F) can lead to a phenomenon called ‘sensitisation,’ which reduces the material’s resistance to corrosion. Therefore, while these washers are highly versatile in handling temperature variations, it is crucial to consider the specific environmental conditions, such as potential exposure to corrosive substances, when using them in high-temperature applications. Always consult with engineering experts or material scientists for your specific use-case to ensure safety and performance.

Can Form A Washers be Painted?

Yes, Form A washers made from Stainless Steel 304 can technically be painted, but there are some considerations to take into account. Stainless steel’s resistance to corrosion is partly due to the oxide layer that forms on its surface. Painting could interfere with this natural resistance. However, if aesthetics or additional corrosion resistance (in highly corrosive environments where even stainless steel might be compromised) are required, painting is an option.

Before painting, the surface should be thoroughly cleaned to remove any oils, dirt or other contaminants. A primer designed for metal, particularly stainless steel, should be applied first. This will help the paint adhere to the washer’s surface more effectively. After the primer has dried, you can apply the paint. It’s advisable to use paint that is formulated for use on metal surfaces and to follow the manufacturer’s instructions for both the primer and paint.

Note that painted washers might have different friction properties, which could affect their performance in load-bearing applications. Always test the painted washers in their intended application to ensure that they meet all functional requirements.

Are Form A Flat Washers Magnetic?

The magnetic properties of Form A Flat Washers depend on the material from which they are made. In the case of Stainless Steel 304, these washers are generally considered to be non-magnetic in their annealed condition. The microstructure of 304 stainless steel is austenitic, which is one of the reasons it is not naturally magnetic. However, cold working processes like bending, forming or drawing can introduce some degree of magnetism due to deformation of the crystal structure. It’s worth noting that while 304 stainless steel washers may not be strongly magnetic, they could show some attraction to a magnet, especially if they have been mechanically stressed or are in a heavily cold-worked condition. If a completely non-magnetic washer is required for your application, you may need to look into specialised materials that maintain a non-magnetic austenitic structure even after mechanical processing.

Check out our blogs discussing Stainless Steel Form A Washers. It will prove a useful read to help you to make an informed decision on which material would work best for you. 

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