Commercial grade standard flat washers made from a high quality 18-8 stainless steel which self produces its own surface "lubrication" that prevent rust Flat washers offer a bolt or screw a wider bearing surface that will disperse the load weight to a greater surface area and ensure that the nut or bolt is pressed up against a smooth surface reducing the chances the fastener loosening over time because of contact with an uneven surface as well as keeping a fastener from pulling through a hole that is larger than the diameter of the head Flat washers are one of the most versitile pieces of hardware that can be used in not only nut and bolt fastenening situations but as shims or to protect a surface from damage Stainless steel grade 18-8 provides a corrosion and chemical resistance that is much greater than plated fasteners and will stand up against the outdoor elements for many years requiring no maintenance or removal due to rusting or corroding Stainless steel flat washers #0 will match up to screws and bolts with the same size notaion Flat washers are a thin, flat, circular stamping with a centrally located hole, made from 18-8 austenitic stainless steel. Designed for use with stainless steel screws and nuts in general applications where parts are subject to corrosion. These general purpose commercial standard flat washers are positioned under a nut, head of a screw, or head of a bolt in order to provide a smooth bearing surface and evenly distribute the fastener load over a wider area.General Product Information:Nominal Washer Size: 1-1/8"Nominal Washer Size: 1.188"Inside Diameter: 1.188"Outside Diameter :2.500"Washer Thickness Minimum : 0.118"Washer Thickness Maximum : 0.132"Quantity of Fasteners in Package: 50