ASTM F436 Washer: Dimensions & Specifications

ASTM F436 Round Structural Washers Drawing

          ASTM F436 Round Structural Washers (ASTM F436)

 Bolt Size

Click on the size to shop products

Outside Diameter (OD)

Inside Diameter (ID)

Thickness(TH)

Max Min Max Min Max Min
1/2 1.094 1.031 .562 .531 .177 .097 
5/8 1.344 1.281 .719 .687 .177 .122 
3/4 1.500 1.438 .843 .812 .177 .122 
7/8 1.781 1.719 .969 .938 .177 .136 
1 2.031 1.969 1.156 1.125 .177 .136 

 


Description


Dimensionally similar to the USS plain washer, but with small outer diameter, produced from 
greater steel grade and heat-treated.


Applications/
Advantages


Designed for A325 & A490 structural bolts.


Material

Structural washers made from steel is of the following for chemical composition requirements: Phosphorous- 0.050% ; Sulfur-0.060%.

Hardness

Rockwell C38-45

Plating

Usually structural washers are plain or furnished with a galvanized finish.