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Description of ASTM-F844 2007ASTM F844 - 07aStandard Specification for Washers, Steel, Plain (Flat), Unhardened for General UseActive Standard ASTM F844 | Developed by Subcommittee: F16.02 Book of Standards Volume: 01.08 ASTM F844Abstract This specification covers round and miscellaneous shape steel plain (flat) washers furnished in an unhardened condition. The washers are intended for general use bolt, nut, and stud applications to provide increased bearing surface, spacing, and to prevent galling. The washers shall be punched from hot-rolled, hot-rolled and pickled, or cold-rolled steel; or shall be machined from bar stock or tubing; or shall be forged. The washers shall also be tumbled, vibrated, or otherwise processed to minimize burrs. These washers may be zinc-coated, hot-dip-coated, cadmium-plated, or zinc-plated by using hot dipping, mechanical deposition, and electroplating processes. Chemical analysis may be conducted in order to determine the composition of washers and a hardness test may also be performed. This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. 1. Scope 1.1 This specification covers round and miscellaneous shape steel plain (flat) washers furnished in an unhardened condition. 1.2 The washers are intended for general use bolt, nut, and stud applications to provide increased bearing surface, spacing, and to prevent galling. 1.3 Unless otherwise specified, the washers are furnished with dimensions conforming to B18.22.1, Type A, Tables 1A and Tables 1B. 1.4 Hardened washers for use with heat-treated structural bolts are covered by Specifications F 436 and F 436M .
ASTM Standards A29/A29M Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for A568/A568M Specification for Steel, Sheet, Carbon, Structural, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, General Requirements for A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products B633 Specification for Electrodeposited Coatings of Zinc on Iron and Steel B695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel D3951 Practice for Commercial Packaging F436 Specification for Hardened Steel Washers F436M Specification for Hardened Steel Washers (Metric) F606 Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection F2329 Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners ASME Standards B18.24 Part Identifying Number (PIN) Code System Standard for B18 Fastener ProductsMilitary Specification DOD-P-16232 Phosphate Coating for Ferrous Metals Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098Federal Specification QQ-P-416 Plating, Cadmium (Electrodeposited)Keywords carbon steel; plain; steel; washers; Steel washers; Unhardened steel washers; Washers/washer assemblies specifications; ICS Code ICS Number Code 21.060.30 (Washers, locking elements) DOI: 10.1520/F0844-07A ASTM International is a member of CrossRef. ASTM F844The following editions for this book are also available...
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