M2 Stainless Washers Flat Gasket Nylon Gasket Customized specifications
USS and SAE Washer Dimensions
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Materials and Chemical compstition
| 化学成分CHEMICAL COMPOSI(% ) | ||||||||||
| Type | C碳 | Si硅 | Mn锰 | P磷 | S硫 | Ni镍 | Cr铬 | Mo钼 | Cu铜 | Others |
| ≤ | ≤ | ≤ | ≤ | ≤ | ≥ | ≥ | ≥ | ≈ | ||
| 201Cu | 0.08 | 1.00 | 7.5-10 | 0.06 | 0.03 | 4.00-6.00 | 14.0-17.0 | 2.0-3.0 | ||
| 201 | 0.15 | 1.00 | 8.50 | 0.06 | 0.03 | 3.50-5.50 | 16.0-18.0 | N≤0.25 | ||
| 130M/202 | 0.15 | 1.00 | 7.5-10 | 0.06 | 0.03 | 4.00-6.00 | 17.0-19.0 | N≤0.25 | ||
| 202 | 0.15 | 1.00 | 7.5-10 | 0.06 | 0.03 | 4.00-6.00 | 17.0-19.0 | |||
| 301 | 0.15 | 1.00 | 2.00 | 0.045 | 0.03 | 5.00-8.00 | 16.0-18.0 | |||
| 302 | 0.15 | 1.00 | 2.00 | 0.045 | 0.03 | 8.00-10.0 | 17.0-19.0 | |||
| XM7 (302HQ) |
0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 8.50-10.5 | 17.0-9.00 | 3.0-4.0 | ||
| 303 | 0.15 | 1.00 | 2.00 | 0.20 | ≥0.15 | 8.00-10.0 | 17.0-19.0 | ≤0.60 | ||
| 303Cu | 0.15 | 1.00 | 3.00 | 0.20 | ≥0.15 | 8.0-10.0 | 17.0-19.0 | ≤0.60 | 1.5-3.5 | |
| 304 | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 8.00-10.0 | 18.0-20.0 | |||
| 304H | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 8.0-10.0 | 18.0-20.0 | |||
| 304HC | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 8.00-10.0 | 17.0-19.0 | 2.0-3.0 | ||
| 304HCM | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 8.0-10.0 | 17.0-19.0 | 2.5-4.0 | ||
| 304L | 0.03 | 1.00 | 2.00 | 0.045 | 0.03 | 9.0-13.0 | 18.0-20.0 | |||
| 304M | 0.06 | 1.00 | 2.00 | 0.045 | 0.03 | 8.50-10.0 | 18.0-20.0 | |||
| 305 | 0.12 | 1.00 | 2.00 | 0.045 | 0.03 | 10.5-13.0 | 17.0-19.0 | |||
| 305J1 | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 11.0-13.5 | 16.5-19.0 | |||
| 309S | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 12.0-15.0 | 22.0-14.0 | |||
| 310S | 0.08 | 1.50 | 2.00 | 0.045 | 0.03 | 19.0-22.0 | 24.0-26.0 | |||
| 314 | 0.25 | 15.-3.0 | 2.00 | 0.040 | 0.03 | 19.0--22.0 | 24.0-26.0 | |||
| 316 | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 | ||
| 316Cu | 0.03 | 1.00 | 2.00 | 0.045 | 0.03 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 | 2.0-3.0 | |
| 316L (12Ni) |
0.03 | 1.00 | 2.00 | 0.045 | 0.03 | 12.0-15.0 | 16.0-18.0 | 2.0-3.0 | ||
| 316L (10Ni) |
0.03 | 1.00 | 2.00 | 0.045 | 0.03 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 | ||
| 321 | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 9.00-13.0 | 17.0-19.0 | Ti≤5*C% | ||
| 410 | 0.15 | 1.00 | 0.03 | 11.5-13.5 | ||||||
| 416 | 0.15 | 1.25 | ≥0.15 | 12.0-14.0 | ||||||
| 420 | 0.26-0.4 | 1.00 | 0.03 | 12.0-14.0 | ||||||
| 410L | 0.30 | 1.00 | 1.00 | 0.040 | 0.03 | 11.5-13.5 | ||||
| 430 | 0.12 | 0.75 | 1.00 | 0.040 | 0.03 | 16.0-18.0 | ||||
| 430F | 0.12 | 1.00 | 1.25 | 0.060 | 0.15 | 16.0-18.0 | ||||
| 631(J1) | 0.09 | 1.00 | 1.00 | 0.040 | 0.03 | 6.50-8.50 | 16.0-18.0 | AL 0.75-1.5 | ||
| 2520 | 0.08 | 1.00 | 2.00 | 0.035 | 0.03 | 19.0-22.0 | 24.0-26.0 | |||
| 410 | 0.015 | 1.00 | 1.00 | 0.04 | 0.03 | 11.5-13.5 | |
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WHAT ARE USS FLAT WASHERS?
USS flat washers are a little bit different than fender washers, or more traditional washers. They offer a normal outer diameter but an inner diameter that is greater than what you would find with a fender washer. USS stands for United States Standard, and USS flat washers were initially designed and developed to meet a wide range of common applications in the manufacturing industry.
So what's the difference that distinguishes SAE vs. USS flat washers? Since SAE flat washers were created by the Society of Automotive Engineers to fulfill broad requirements within the automotive industry, they have a smaller outer diameter and thinner gauges than USS versions.
WHAT ARE USS FLAT WASHERS USED FOR?
These washers offer outer diameters, inner diameters and thicknesses that are designed for widespread use and stability, which is what makes them such a popular choice in most industrial applications in each field of manufacturing, repair and maintenance. In practice, USS flat washers are placed under nuts or the heads of bolts to allow for rotation without distorting a surface. These washers also allow for incredible tightness at the joint, which helps distribute pressure and prevent potential leaking.
Today, USS flat washers are used for any number of tasks, both by service professionals and do-it-yourself enthusiasts who are seeking to achieve professional-grade results. When you want a vast selection of USS flat washers that meet the highest quality standards, look no further than FMW Fasteners.
At QBHFasteners, you can get both SAE and USS flat washers to meet your particular applications and best suit your needs.
A SELECTION CURATED JUST FOR YOU
We are committed to delivering options. That’s why you’ll find a range of different types of USS flat washers in our selection, as well as other types for customers debating SAE vs. USS flat washers. More specifically, our selection includes plain, hot-dipped galvanized and zinc-plated USS flat washers in a series of different dimensions and specifications.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.