M8 X 20mm Stainless Steel Flat Washers 20mm Outer Diameter 1.5mm Thick ID 8.5 to 8.8mm 304 Stainless Steel 18 8 Rust Resistant Heavy Duty No Fuss 100 Pack for Fasteners and Hardware Projects

100-pack M8 x 20mm Stainless Flat Washers
✔️ Inner dia 8.5-8.8mm; outer dia 19.6-20mm; 1.5mm thick; SS304

These flat washers are sized for M8 bolts and crafted from 304 stainless steel, delivering solid corrosion resistance for long-lasting use. They’re ideal for indoor and outdoor fastener assemblies, helping to evenly distribute load and protect mating surfaces on furniture, machinery, decking, and more.

✅ Inside Diameter: 8.5-8.8 mm
✅ Outside Diameter: 19.6-20 mm
✅ Thickness: 1.5 mm
✅ Material: 304 stainless steel (18-8 / A2-70)
✅ Finish: Silver, rust resistant
✅ Pack: 100 washers

💡 What is a stainless steel flat washer used for in bolt assemblies? Handy load distribution and surface protection for fastened joints.
- Load distribution across bearing surfaces
- Surface protection against scratches and embedding
- Helps prevent loosening by reducing friction and wear