Flat Washers
Flat washers to GB/T 97.1 for load spreading and surface protection. Filter by ID, OD, thickness, material and finish.
Key Parameters
Standard Basis
GB/T 97.1
Common equivalents are listed below; confirm dimensions and drawing details before substitution.
Spec Range
M3–M36 · 17 sizes / 88 SKUs
Stainless 304, Stainless 316L, Stainless 316, Carbon Steel, Steel, Q235 Steel, 42CRMO, Alloy Steel, Stainless Steel, EPDM; Dacromet, Polished, Zinc Plated, Hot-Dip Galvanized
Grades
42CRMO, 10.9, A2-70, 12.9, 8.8
Confirm grade together with mating nuts, washers and certificate requirements.
What to include
Quoted by full spec
A washer is not defined by inner diameter alone. Outer diameter, thickness, material and finish affect bearing area, corrosion isolation and stack height. Recheck OD and thickness when substituting standards.
Standard Equivalents
Cross-referenced equivalents, order to the primary standard
| Standard | Fit | Remark |
|---|---|---|
| GB GB/T 97.1 | Identical family | Chinese flat washer standard family |
| DIN DIN 125 | Commercial equivalent | Common commercial equivalent; confirm dimensions |
| ISO ISO 7089 | Commercial equivalent | Common commercial equivalent; confirm dimensions |
Flat washers to GB/T 97.1 for load spreading and surface protection. Filter by ID, OD, thickness, material and finish.
Spec Range
M3–M36 · 17 sizes
SKU Matrix
88 SKUs| SKU | Size (Dia × Len) | Material / Finish | Threading | Pitch | Unit Wt (g) | Action | |
|---|---|---|---|---|---|---|---|
 | FW-000066 | M3 | Carbon Steel· Zinc Plated5 material/finish options | — | — | 0.1 Estimated | |
 | FW-000071 | M4 | Carbon Steel· Zinc Plated5 material/finish options | — | — | 0.3 Estimated | |
 | FW-000076 | M5 | Carbon Steel· Zinc Plated5 material/finish options | — | — | 0.5 Estimated | |
 | FW-000049 | M6 | Carbon Steel· Zinc Plated5 material/finish options | — | — | 1 Estimated | |
 | FW-000018 | M8 | Carbon Steel· Dacromet13 material/finish options | — | — | 2 Estimated | |
 | FW-000010 | M10 | Carbon Steel· Dacromet8 material/finish options | — | — | 4 Estimated | |
 | FW-000057 | M12 | Carbon Steel· Zinc Plated9 material/finish options | — | — | 7 Estimated | |
 | FW-000009 | M16 | Carbon Steel9 material/finish options | — | — | 12 Estimated | |
 | FW-000004 | M20 | Carbon Steel· Dacromet10 material/finish options | — | — | 18 Estimated | |
 | FW-000032 | M20×80 | Alloy Steel· 10.9 | — | — | 18 Estimated | |
 | FW-000016 | M20×100 | Alloy Steel· 10.9 | — | — | 18 Estimated | |
 | FW-000081 | M24 | Carbon Steel· Zinc Plated6 material/finish options | — | — | 34 Estimated | |
 | FW-000033 | M24×100 | Alloy Steel· 12.9 | — | — | 34 Estimated | |
 | FW-000029 | M30 | Carbon Steel7 material/finish options | — | — | 55 Estimated | |
 | FW-000012 | M30×400 | Alloy Steel· 10.9 | — | — | 55 Estimated | |
 | FW-000020 | M36 | Carbon Steel· Dacromet | — | — | 94 Estimated | |
 | FW-000003 | M5.5 | Stainless 316 | — | — | 1 Estimated |