Core features of DIN9021 Large Plain Washer
- Large outer diameter: Maximizes contact area, effectively dispersing clamping pressure to avoid workpiece deformation
- Surface protection: Ideal for soft materials (wood, plastic, aluminum) or fragile surfaces, preventing indentation from bolts/nuts
- Enhanced stability: Wider contact improves fastener balance, reducing loosening in vibration environments
- Strong compatibility: Matches bolts, nuts of the same specification, applicable to machinery, construction, furniture
- Easy application: Directly placed between fastener and workpiece, no additional installation steps
Product Parameter (Specification)
| Standard | DIN,ASTM/ANSI,ISO | Material | Carbon steel, Stainless Steel, Aluminum |
| Surface Treatment | Zinc Plated, Galvanized, Black Oxide, Passivation, sand blast, PTFE, Teflon, Xylan | Unite | Zinc Plated, Galvanized, Black Oxide, Passivation, sand blast, PTFE, Teflon, Xylan |
| Packing | Small boxes, small polybag,Bulk cartons with pallet | Unite | Piece,KGS,TON |
Product Application
DIN 9021 large flat washer are widely used in heavy Industry, mining, water treatment, healthcare, retail industry, general industry, machinery, Oil & Gas, automotive industry etc.


