Comprehensive Guide to Metric Flat Washer Sizes and Pricing Options

Understanding the Metric Flat Washer Size Chart and Price List

When it comes to assembly and construction projects, fasteners play a crucial role in ensuring stability and reliability. Among these fasteners, flat washers are an essential component that often goes unnoticed. They serve various functions, such as distributing load, preventing leakage, and protecting surfaces from damage. This article will provide an overview of metric flat washers, their sizes, and an associated price list to help you make informed decisions in your hardware selection.

What are Metric Flat Washers?

Flat washers are typically disc-shaped pieces of metal or plastic with a hole in the center. They are used in conjunction with bolts, screws, or nuts to increase the surface area of the fastener, thereby reducing the pressure on the material being fastened. By using flat washers, we can prevent the fasteners from digging into the material and can significantly enhance the overall durability and effectiveness of a fastening assembly.

Metric flat washers are designed according to metric sizing standards, which are widely used in many countries around the globe. This ensures compatibility and uniformity in engineering applications, especially for industries involved in manufacturing, automotive, and construction.

Metric Flat Washer Size Chart

Understanding the sizes of flat washers is essential for selecting the appropriate type for your project needs. Here is a brief overview of typical metric sizes

1. Inner Diameter (ID) The inner diameter corresponds to the size of the bolt or screw that the washer will accommodate. Common ID sizes for metric washers include - M3 (3mm) - M4 (4mm) - M5 (5mm) - M6 (6mm) - M8 (8mm) - M10 (10mm) - M12 (12mm) - M16 (16mm) - M20 (20mm)

2. Outer Diameter (OD) This dimension indicates how wide the washer is. The outer diameter varies depending on the inner diameter. Typically, the OD sizes will be about two to three times the size of the ID.

3. Thickness The thickness of the washer also plays a vital role in its performance. Common thickness ranges from 0.5mm to 5mm or higher, depending on the application requirements.

Price List for Metric Flat Washers

The price of metric flat washers can vary significantly depending on factors such as material, size, and supplier. Here’s a general idea of what to expect regarding pricing

- Steel Washers These are often the most affordable, with prices ranging from $0.01 to $0.10 per washer, depending on size and quantity ordered. - Stainless Steel Washers Due to their corrosion resistance and durability, stainless steel washers can range from $0.05 to $0.50 each. - Plastic Washers Typically used in specialized applications, these washers can cost between $0.02 and $0.30, depending on the material type (like nylon or PTFE).

It is essential to consider bulk purchasing options as many suppliers offer discounts for larger orders, which can help reduce costs significantly.

Conclusion

In summary, metric flat washers are small yet vital components in numerous applications across various industries. Their primary role in load distribution and protection makes them indispensable in assembly projects. Understanding the size chart and price list can empower you to make better purchasing decisions, ensuring you select the right washers for your specific needs. Always consult with suppliers and consider the materials and sizes that best fit your requirements for optimal performance and cost-effectiveness. Whether you are a professional contractor or a DIY enthusiast, having a good grasp of this information will undoubtedly aid in your future projects.