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Home / Washers / 304 Stainless Steel Spring Washers / 316 Spring Lock Washers / 201 Spring Washers / Flat Washers M2 M2.5 M3 M4-M36

Attributes

Brand -
Category Standard Parts, Components & Industrial Consumables / Washers
Origin -
Material Grade 304, 316, and 201 Stainless Steel
Available Sizes M2, M2.5, M3, M4 through M36
Surface Finish Polished and Smooth
Hardness HV 200-300 (Standard Spring Temper)
Corrosion Resistance High (Especially Grade 316)
Application Type Locking and Load Distribution
Thread Compatibility Metric Coarse Thread
Package Options Bulk Bags or Boxed Sets
Temperature Range -50°C to +400°C
Certification ISO 9001 Manufactured

6 reviews

A

Anonymous

Mar 21, 2026

Rating: 4/5

Good quality, fast shipping

The 304 stainless steel washers are solid and well-made. I used them for a kitchen appliance assembly. One star off because the packaging was slightly damaged, but the product inside was fine.

A

Anonymous

Mar 18, 2026

Rating: 5/5

Exact sizing as described

Needed specific M3 spring lock washers for an electronics enclosure. These fit snugly and provide excellent tension. The split is clean and consistent across the whole batch.

A

Anonymous

Mar 17, 2026

Rating: 4/5

Solid hardware

These washers do exactly what they are supposed to do. The metal feels durable and not brittle. I wish they offered a mixed size kit, but buying individual sizes works fine too.

A

Anonymous

Mar 14, 2026

Rating: 5/5

Great bulk value

Purchased a large quantity of M6 flat washers for our workshop. The price per unit is unbeatable for this quality of stainless steel. We will definitely reorder.

A

Anonymous

Mar 13, 2026

Rating: 5/5

Essential for vibration resistance

Using these on a motor mount where vibration is high. The spring action holds the nuts tight without loosening over time. Very satisfied with the performance.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Perfect for marine projects

I bought the 316 grade washers for a boat repair job. They fit perfectly on M8 bolts and show no signs of rust after three months in saltwater spray. Highly recommended for outdoor use.

5 FAQ

Q: What is the return policy if I order the wrong size?

A: We accept returns within 30 days for unused items in original packaging. Please contact our support team to initiate a return request for the incorrect size.

Q: Is the 201 grade magnetic?

A: Yes, 201 stainless steel is generally magnetic due to its manganese and nitrogen content, whereas 304 and 316 are typically non-magnetic or weakly magnetic depending on the cold working process.

Q: What is the difference between the 304 and 316 grades?

A: Grade 304 is standard stainless steel suitable for most indoor and general outdoor applications. Grade 316 contains molybdenum, offering superior corrosion resistance, making it ideal for marine environments or exposure to chemicals.

Q: Do these washers come with nuts included?

A: No, this listing is for spring lock washers and flat washers only. Nuts and bolts are sold separately in our hardware section.

Q: Can I use M4 washers on an M4.5 bolt?

A: No, metric washers are sized specifically for their corresponding bolt diameter. An M4 washer will be too loose on an M4.5 bolt and will not function correctly. Please select the matching size.

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