1.2 The types of washers covered in this specification are:
1.2.1 Type 18212;Washers made of carbon steel.
1.2.2 Type 38212;Washers made of steel having atmospheric corrosion resistance and weathering characteristics comparable to that of steels covered in Specifications A 242/A 242M, A 588/A 588M, and A 709. The atmospheric corrosion resistance of these steels is substantially better than that of carbon steel with or without copper addition. See 5.1. When properly exposed to the atmosphere, these steels can be used bare (uncoated) for many applications.
1.3 The styles of washers covered in this specification are:
1.3.1 Circular Washers8212;Circular washers in nominal sizes 12 mm through 100 mm, are suitable for applications where sufficient space exists and angularity permits.
1.3.2 Beveled Washers8212;Beveled washers are square and rectangular, in nominal sizes 12 mm through 36 mm, with a beveled 1:6 surface for use with American Standard beams and channels.
1.3.3 Clipped Washers8212;Clipped washers are circular or beveled for use where space limitations necessitate that one side be clipped.
Note 18212;This specification is the metric counterpart of Specification F 436.
1.4 Terms used in this specification are defined in Terminology F 1789 unless otherwise defined herein.
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