ASTM F844-07a - 1.12.2007
 
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.

 
2. Referenced Documents

F1470-24

Standard Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection

F2329-13

Standard Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners

B18.24

Part Identifying Number (PIN) Code System Standard for B18 Fastener Products

F436M-11

Standard Specification for Hardened Steel Washers [Metric] (Withdrawn 2016)

F606-14

Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets

F436-11

Standard Specification for Hardened Steel Washers

D3951-18(2023)

Standard Practice for Commercial Packaging

B695-21

Standard Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel

B633-23

Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel

A751-21

Standard Test Methods and Practices for Chemical Analysis of Steel Products

B18.22.1

Plain Washers

QQ-P-416

Plating, Cadmium (Electrodeposited)

A29/A29M-23

Standard Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought

A568/A568M-19a

Standard Specification for Steel, Sheet, Carbon, Structural, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, General Requirements for (Includes all amendments and changes 11/22/2019).

DOD-P-16232

Phosphate Coating for Ferrous Metals Available from DLA Document Services, Building 4/D, 700 Robbins Avenue, Philadelphia, PA 19111-5094, http://quicksearch.dla.mil/