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Washers
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USS flat washers
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Zinc plated grade 8 steel yellow
USS flat washers, Zinc plated grade 8 steel yellow, 5/16"
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Size
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3061
5/16"
$0.15
/ ea
$8.74
/ 100
$73.60
/ 1000
$0.15
/ ea
$8.74
/ 100
$73.60
/ 1000
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Product details
Bolt Depot product#
3061
Units
US
Category
Washers
Used to spread the load of a bolt or screw over a larger area or to help prevent loosening under vibration.
Subcategory
USS flat washers
USS pattern is the most common type of flat washer.
Material
Steel
A tempered medium carbon steel.
Plating
Zinc
Zinc plated for moderate corrosion resistance.
Grade
Grade 8
Grade 8 is stronger than grade 5, and is commonly found in high strength automotive applications.
Color
Yellow
Size
5/16"
Outside diameter
7/8"
(Min
0.868"
, Max
0.905"
)
Inside diameter
3/8"
(Min
0.370"
, Max
0.390
)
Thickness
0.064"
-
0.104"
Dimensional standard
ASME B18.21.1
Additional information
USS Washer sizes