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Flat Washer DIN125 M12 SS304/304 Stainless Steel Plain
Flat Washer DIN125 M12 SS304/304 Stainless Steel Plain
Product Information
304 stainless steel flat washers play a critical role in many engineering and mechanical applications. This is because using the right washer helps distribute the load of a fastener evenly over a larger surface area, minimizing stress concentration and preventing damage to the underlying material. This is particularly important when using stainless steel fasteners, which can cause galling and other issues if not properly backed up with a suitable washer.
304 stainless steel is a popular material choice for washers due to its excellent corrosion resistance, good forming and welding properties, and high strength. It is also commonly available and affordable, making it a versatile choice for a wide range of applications.
304 stainless steel flat washers are available in a variety of sizes and thicknesses, making them easy to customize according to your needs. Whether you need a thin or thick washer, a small or large diameter, or a special shape or finish, a 304 stainless steel washer can likely meet your requirements.
304 stainless steel flat washer: A critical component in many applications.Some common applications of 304 stainless steel flat washers include use in plumbing, HVAC systems, automotive assembly, and construction. These washers can help prevent leaks, reduce noise and vibration, and ensure proper installation of nuts, bolts, screws, and other fasteners. They are also used in precision machinery and equipment, and in aerospace and defense applications where reliability and durability are essential.
Of course, it’s not just about the material choice, but also the quality of manufacture. For optimal performance, it is important to choose high-quality 304 stainless steel flat washers that are manufactured to exacting specifications. This involves using only high-grade stainless steel material, precision machining, and rigorous quality control measures to ensure that the finished product meets or exceeds industry standards.
Whether you are an engineer, mechanic, or hobbyist, 304 stainless steel flat washers are an essential item to have in your toolbox. By choosing this versatile and reliable material, you can be assured of long-lasting performance and peace of mind. So next time you need a washer, consider using 304 stainless steel and experience the benefits for yourself!
Flat Washer Dimensions
Table W1 | ||||
|---|---|---|---|---|
| Bolts Size | A O.D. | B I.D. | C Thickness | |
| Min | Max | |||
| 1/4″ | 5/8 | 9/32 | 0.051 | 0.080 |
| 5/16″ | 11/16 | 11/32 | 0.051 | 0.080 |
| 3/8″ | 13/16 | 13/32 | 0.051 | 0.080 |
| 7/16″ | 59/64 | 15/32 | 0.051 | 0.080 |
| 1/2″ | 1-1/16 | 17.32 | 0.097 | 0.177 |
| 5/8″ | 1-5/16 | 11/16 | 0.122 | 0.177 |
| 3/4″ | 1-15/32 | 13/16 | 0.122 | 0.177 |
| 7/8″ | 1-3/4 | 15/16 | 0.136 | 0.177 |
| 1″ | 2 | 1-1/8 | 0.136 | 0.177 |
| 1-1/8″ | 2-1/4 | 1-1/4 | 0.136 | 0.177 |
| 1-1/4″ | 2-1/2 | 1-3/8 | 0.136 | 0.177 |
| 1-3/8″ | 2-3/4 | 1-1/2 | 0.136 | 0.177 |
| 1-1/2″ | 3 | 1-5/8 | 0.136 | 0.177 |
| 1-3/4″ | 3-3/8 | 1-7/8 | 0.178 | 0.28 |
| 2″ | 3-3/4 | 2-1/8 | 0.178 | 0.28 |
| 2-1/4″ | 4 | 2-3/8 | 0.24 | 0.34 |
| 2-1/2″ | 4-1/2 | 2-5/8 | 0.24 | 0.34 |
| 2-3/4″ | 5 | 2-7/8 | 0.24 | 0.34 |
| 3″ | 5-1/2 | 3-1/8 | 0.24 | 0.34 |
| 3-1/4″ | 6 | 3-3/8 | 0.24 | 0.34 |
| 3-1/2″ | 6-1/2 | 3-5/8 | 0.24 | 0.34 |
| 3-3/4″ | 7 | 3-7/8 | 0.24 | 0.34 |
| 4″ | 7-1/2 | 4-1/8 | 0.24 | 0.34 |
Table W2 | ||||
|---|---|---|---|---|
| Bolts Size | A O.D. | B I.D. | C Thickness | |
| Min | Max | |||
| 1/4″ | 3/4 | 5/16 | 0.051 | 0.080 |
| 5/16″ | 7/8 | 3/8 | 0.064 | 0.104 |
| 3/8″ | 1 | 7/16 | 0.064 | 0.104 |
| 7/16″ | 1-1/4 | 1/2 | 0.064 | 0.104 |
| 1/2″ | 1-3/8 | 9/16 | 0.086 | 0.132 |
| 9/16″ | 1-1/2 | 5/8 | 0.086 | 0.132 |
| 5/8″ | 1-3/4 | 11/16 | 0.108 | 0.160 |
| 3/4″ | 2 | 13/16 | 0.122 | 0.177 |
| 7/8″ | 2-1/4 | 15/16 | 0.136 | 0.192 |
| 1″ | 2-1/2 | 1-1/16 | 0.136 | 0.192 |
| 1-1/8″ | 2-3/4 | 1-1/4 | 0.136 | 0.192 |
| 1-1/4″ | 3 | 1-3/8 | 0.136 | 0.192 |
| 1-3/8″ | 3-1/4 | 1-1/2 | 0.153 | 0.213 |
| 1-1/2″ | 3-1/2 | 1-5/8 | 0.153 | 0.213 |
Table W3 | ||||
|---|---|---|---|---|
| Bolts Size | A O.D. | B I.D. | C Thickness | |
| 1/8″ | 3/8 | 5/32 | 3/64 | |
| 5/32″ | 7/16 | 3/16 | 3/64 | |
| 3/16″ | 1/2 | 7/32 | 3/64 | |
| 7/32″ | 9/16 | 1/4 | 3/64 | |
| 1/4″ | 5/8 | 9/32 | 1/16 | |
| 5/16″ | 11/16 | 11/32 | 1/16 | |
| 3/8″ | 13/16 | 13/32 | 1/16 | |
| 7/16″ | 59/64 | 15/32 | 1/16 | |
| 1/2″ | 1-1/16 | 17/32 | 3/32 | |
| 9/16″ | 1-3/16 | 19/32 | 3/32 | |
| 5/8″ | 1-5/16 | 21/32 | 3/32 | |
| 3/4″ | 1-1/2 | 13/16 | 9/64 | |
| 7/8″ | 1-3/4 | 15/16 | 9/64 | |
| 1″ | 2 | 1-1/16 | 9/64 | |
| 1-1/8″ | 2-1/4 | 1-1/4 | 9/64 | |
| 1-1/4″ | 2-1/2 | 1-3/8 | 5/32 | |
| 1-3/8″ | 2-3/4 | 1-1/2 | 5/32 | |
| 1-1/2″ | 3 | 1-5/8 | 5/32 | |
Table W4 | ||||
|---|---|---|---|---|
| Bolts Size | A O.D. | B I.D. | C Thickness | |
| 3/16″ | 9/16 | 1/4 | 3/64 | |
| 1/4″ | 3/4 | 5/16 | 1/16 | |
| 5/16″ | 7/8 | 3/8 | 5/64 | |
| 3/8″ | 1 | 7/16 | 5/64 | |
| 7/16″ | 1-1/4 | 1/2 | 5/64 | |
| 1/2″ | 1-3/8 | 9/16 | 7/64 | |
| 9/16″ | 1-1/2 | 5/8 | 7/64 | |
| 5/8″ | 1-3/4 | 11/16 | 9/64 | |
| 3/4″ | 2 | 13/16 | 5/32 | |
| 7/8″ | 2-1/4 | 15/16 | 11/64 | |
| 1″ | 2-1/2 | 1-1/16 | 11/64 | |
| 1-1/8″ | 2-3/4 | 1-1/4 | 11/64 | |
| 1-1/4″ | 3 | 1-3/8 | 11/64 | |
| 1-3/8″ | 3-1/4 | 1-1/2 | 3/16 | |
| 1-1/2″ | 3-1/2 | 1-5/8 | 3/16 | |
| 1-5/8″ | 3-3/4 | 1-3/4 | 3/16 | |
| 1-3/4″ | 4 | 1-7/8 | 3/16 | |
| 1-7/8″ | 4-1/4 | 2 | 3/16 | |
| 2″ | 4-1/2 | 2-1/8 | 3/16 | |
| 2-1/4″ | 4-3/4 | 2-3/8 | 7/32 | |
| 2-1/2″ | 5 | 2-5/8 | 15/64 | |
| 2-3/4″ | 5-1/4 | 2-7/8 | 1/4 | |
| 3″ | 5-1/2 | 3-1/8 | 17/64 | |
Common Fastener Materials
Fasteners are fabricated from a variety of materials. These options include metals and polymers. Stainless steel offers strength and corrosion resistance. While polymer options have less strength than stainless, they are a good choice for resisting chemicals. The most common materials are:
- Stainless steel
- Alloy steel
- Low carbon steel
- Medium carbon steel
- Titanium
- Polymers, such as nylon
Finish Options
The use of heat treatments and application of various finishes, also known as “plating,” affects the look and performance of fasteners. Finishes provide material stability and protect the fasteners from corrosion and rust. Below are some common heat treatment and finish benefits:
- Zinc coating – Most common, low cost, resists corrosion and rust
- Galvanized – Superior corrosion protection, anti-seize, higher upfront investment
- Stainless – Great for humid environments, strong, ideal for electrical or mechanical uses
- Black – Adds color, provides better grip, deflects light
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