Flat Washers
Flat washers to GB/T 97.1-2002 for load spreading and surface protection. Filter by ID, OD, thickness, material and finish.
Reference StandardsGB/T 97.1-2002
Flat washers to GB/T 97.1-2002 for load spreading and surface protection. Filter by ID, OD, thickness, material and finish.
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 | Request a Quote | |
| FW-000071 | M4 | Carbon Steel· Zinc Plated5 material/finish options | — | — | 0.3 Estimated | Request a Quote | |
| FW-000076 | M5 | Carbon Steel· Zinc Plated5 material/finish options | — | — | 0.4 Estimated | Request a Quote | |
| FW-000049 | M6 | Carbon Steel· Zinc Plated5 material/finish options | — | — | 1 Estimated | Request a Quote | |
| FW-000018 | M8 | Carbon Steel· Dacromet13 material/finish options | — | — | 2 Estimated | Request a Quote | |
| FW-000010 | M10 | Carbon Steel· Dacromet8 material/finish options | — | — | 4 Estimated | Request a Quote | |
| FW-000057 | M12 | Carbon Steel· Zinc Plated9 material/finish options | — | — | 6 Estimated | Request a Quote | |
| FW-000009 | M16 | Carbon Steel9 material/finish options | — | — | 11 Estimated | Request a Quote | |
| FW-000004 | M20 | Carbon Steel· Dacromet10 material/finish options | — | — | 17 Estimated | Request a Quote | |
| FW-000032 | M20×80 | Alloy Steel· 10.9 | — | — | 17 Estimated | Request a Quote |
Unit weight is a geometric estimate (base metal, coating excluded; HDG ≈ +4.5%); trade settlement by actual weight.
Key Parameters
Standard Basis
GB/T 97.1-2002
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 97.1-2002 | 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 |
Related Procurement Guides
Flat & Spring Washer Weight Chart
Flat washers to GB/T 97.1-2002 and spring washers to DIN 127 side by side: OD, thickness and unit weight, kg/1,000 ↔ lb/100 toggle.
EN 10204 3.1 vs 3.2
What separates 2.1, 2.2, 3.1 and 3.2, who signs each, what the values must show, and how to write the requirement into your PO.
Fastener Receiving Inspection Checklist
39 acceptance items drawn from three public tender specifications: document pack, MTC field checks, galvanizing and salt spray, torque and rejection rules.