
- Steel Flat Washer, Zinc Yellow Chromate Plated Finish, Grade 8, ASME B18.22.1, 1/2" Screw Size, 9/16" ID, 1-3/8" OD, 0.135" Thic
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From $9.59 (New)

From $9.59 (New)

| Latest | $9.59 Apr 22, '16 |
| Highest | $10.45 Feb 15, '16 |
| Lowest | $6.48 Mar 29, '16 |
| Average | $6.56 (30d avg) $7.28 (Lifetime average) |
| Added | Feb 5, 2016 |
30 day average: 61,592
The grade 8 steel flat washer has a zinc yellow-chromate plated finish and meets American Society of Mechanical Engineers ASME B18.22.1 specifications. The flat washer provides a bearing surface for fastener load distribution or is used as a spacer between components. Grade 8 steel is stronger than grade 5 steel, and is often used in applications where strength is the primary consideration. The zinc yellow-chromate plating offers good corrosion resistance.Washers distribute the load of a fastener across a surface and can also be used as spacers, springs, shims, or locking devices. Several different washer styles fit a variety of application and installation requirements. The most common style is a flat washer. More specialized washers provide additional benefits. A cup washer, for example, helps protect fasteners from electrical currents, while a lock washer offers additional security in an assembled workpiece.