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🔧 Elevate your build with precision and polish — don’t get left behind!
The Instockbolts M10 x 20mm OD Flat Washer set features 50 high-quality 18-8 (304) stainless steel washers, engineered to DIN 125A standards. With a polished finish and robust corrosion resistance, these washers deliver reliable performance for industrial, automotive, and DIY applications. Perfectly sized for M10 bolts, they combine durability and value, backed by a 4.8-star rating from over 1,200 users.







| ASIN | B0BGHC1NN7 |
| Best Sellers Rank | #2,662 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #15 in Flat Washers |
| Brand | Instockbolts |
| Color | Silver 304 |
| Customer Reviews | 4.7 4.7 out of 5 stars (462) |
| Exterior Finish | Stainless Steel |
| Fastener Size | M10 |
| Fastener Type | Flat Washer |
| Finish Types | Polished |
| Item Diameter | 20 millimeters |
| Item Dimensions | 0.39 x 0.39 x 0.04 inches |
| Item Thickness | 20 millimeters |
| Manufacturer | Instockbolts |
| Material Type | Stainless Steel |
| Metal Type | Stainless Steel |
| Model | M10 |
| Number Of Items | 50 |
| Number of Pieces | 50 |
| Outside Diameter | 20 millimeters |
| Part Number | M10 |
| Screw Head Style | Flat |
| Set Name | 50pcs M10 Stainless Steel Flat Washers |
| Size Name | M10/304 |
| Thread Size | M10 |
| UPC | 740727238576 |
| Unit Count | 50 Count |
| Washer Application | General Purpose |
| Washer Compatibility | M10 bolts |
| Washer Type | Flat |
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