
Stainless Steel Flat Washers
Standard Round Washers in 304 Stainless Steel
A 304 stainless steel flat washer is a round outer diameter thin plate with a center hole (inner diameter) punched to the size of the bolt or screw size.
- Used to distribute fastener pressure evenly
- Can act as a flat surface area for nut or bolt to tighten against
- Washer Thickness may very +/- .007 depending on production run
- IFI Tolerances Apply
- 304 stainless steel flat washers are corrosion resistant
Flat Washer Sizes | Inner Diameter (ID) | Outer Diameter (OD) | Washer Thickness |
#4 | 0.125" | 0.312" | 0.031" |
#6 | 0.149" | 0.375" | 0.031" |
#8 | 0.174" | 0.375" | 0.031" |
#10 | 0.203" | 0.437" | 0.063" |
#12 | 0.250" | 9/16" | 0.050" |
1/4" | 0.281" | 5/8" | 0.050" |
5/16" | 0.343" | 3/4" | 0.050" |
3/8" | 0.406" | 7/8" | 0.050" |
7/16" | 0.500" | 1-1/8" | 0.062" |
1/2" | 0.531" | 1-1/4" | 0.062" |
9/16" | 0.625" | 1-3/8" | 0.078" |
5/8" | 0.687" | 1-1/2" | 0.078" |
3/4" | 0.812" | 1-7/8" | 0.109" |
7/8" | 0.937" | 2" | 0.109" |
1" | 1.062" | 2" | 0.125" |
1-1/8" | 1.187" | 2-1/2" | 0.125" |
1-1/4" | 1.312" | 2-3/4" | 0.125" |
1-3/8" | 1.500" | 3-1/4" | 0.140" |
1-1/2" | 1.562" | 3-1/4" | 0.140" |
1-3/4" | 1.812" | 3-1/2" | 0.140" |
See Product Specifications