Stainless Heavy Oversize Washers – Grade A4
- Grade A4 – 316 stainless steel
- DIN 9021
- Thick washers and 3 x bolt diameter
Grade A4 stainless steel is used for fasteners requiring higher levels of corrosion resistance and is often referred to as marine grade or acid proof. Form ‘G’ heavy oversize washers with a grade A4 316 stainless steel finish. The washer diameter is 3 x bolt diameter.