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Grade 8 USS Flat Washers

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Heat Treated Alloy Steel - Yellow Zinc Plated

 Grade 8 USS Flat Washers are manufactured from High Strength Alloy Steel.  It is recommended that a Grade 8 Flat Washer be used with Grade 8 Nuts and Bolts.  Grade 8 Washers do not crush and deform when torque is applied in tightening.

Size

O.D.

I.D.

Thickness

# per Lb. (approx.)

3/16

9/16

1/4

3/64

361

1/4

3/4

5/16

1/16

149

5/16

7/8

3/8

5/64

87

3/8

1"

7/16

5/64

67

7/16

1-1/4

1/2

5/64

41

1/2

1-3/8

9/16

7/64

26

9/16

1-1/2

5/8

7/64

22

5/8

1-3/4

11/16

9/64

13

3/4

2"

13/16

5/32

9.1

7/8

2-1/4

15/16

11/64

6.5

1"

2-1/2

1-1/16

11/64

5.3

1-1/8

2-3/4

1-1/4

11/64

4.5

1-1/4

3"

1-3/8

11/64

3.8

1-3/8

3-1/4

1-1/2

3/16

3

1-1/2

3-1/2

1-5/8

3/16

2.6