1.1 This specification covers the chemical, mechanical, and dimensional requirements for hardened steel washers for use with fasteners having nominal thread diameters of 1\/4 through 4 in. These washers are intended for general-purpose mechanical and structural use with bolts, nuts, studs, and other internally and externally threaded fasteners. These washers are suitable for use with fasteners covered in Specifications A 325, A 354, A 449, and A 490.<\/p>\n
1.2 The washers are designated by type<\/i> denoting the material and by style<\/i> denoting the shape.<\/p>\n
1.2.1 The types of washers covered are:<\/p>\n
Type 1 <\/p>\n
Carbon steel.<\/p>\n
Type 3 <\/p>\n
Weathering steel. Atmospheric corrosion resistance and weathering characteristics are comparable to that of steels covered in Specifications A 588\/A 588M and A 709\/A 709M. The atmospheric corrosion resistance of these steels is substantially better than that of carbon steel with or without copper addition. See . When properly exposed to the atmosphere, these steels can be used bare (uncoated) for many applications.<\/p>\n
1.2.2 The styles of washers covered are:<\/p>\n
Circular <\/p>\n
Circular washers in nominal bolt sizes 1\/4 through 4 in. suitable for applications where sufficient space exists and angularity permits.<\/p>\n
Beveled <\/p>\n
Beveled washers are square or rectangular, in nominal sizes 1\/2 through 11\/2 in., with a beveled 1 to 6 ratio surface for use with American standard beams and channels.<\/p>\n
Clipped <\/p>\n
Clipped washers are circular or beveled for use where space limitations necessitate that one side be clipped.<\/p>\n
A complete metric companion to Specification F 436 has been developed-Specification F 436M; therefore no metric equivalents are presented in this specification.<\/p>\n
Extra Thick <\/p>\n
Extra thick washers are circular washers in nominal sizes 1\/2through 11\/2 in., with a nominal thickness of 5\/16 in. suitable for structural applications with oversized holes.<\/p>\n
1.3 Terms used in this specification are defined in Terminology F 1789 unless otherwise defined herein.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | Scope Referenced Documents <\/td>\n<\/tr>\n | ||||||
| 2<\/td>\n | Ordering Information Materials and Manufacture Chemical Composition Mechanical Properties Dimensions and Tolerances Workmanship, Finish, and Appearance TABLE 1 <\/td>\n<\/tr>\n | ||||||
| 3<\/td>\n | TABLE 2 <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | Sampling and Number of Tests Test Methods Inspection TABLE 3 TABLE 4 <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | Rejection and Rehearing Certification and Test Report Responsibility Product Marking Packaging and Package Marking Keywords <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" F436-07 Standard Specification for Hardened Steel Washers<\/b><\/p>\n |