Type B Zinc-Plated Steel Flat Washer No. 4 Screw Size, 1/4" Narrow OD, .02"-.05" Thk.
| Shape | Round Hole |
| For Screw Size | 4 |
| Material Type | Steel |
| Finish | Zinc-Plated |
| Inside Diameter .04" (1/16") to .149" (9/64") | .125" (1/8") |
| Inside Diameter | .125" (1/8") |
| Outside Diameter | .25" (1/4") |
| Minimum Thickness | .02" |
| Maximum Thickness | .05" |
| Rockwell Hardness | Minimum B40 |
| Specifications Met | American Society of Mechanical Engineers (ASME) |
| ASME Specification | ASME B18.22.1 |
