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Flat washers are used under bolt heads or nuts to increase the bearing area or offer greater hardness, so that the nut or bolt can be rotated without distortion of the bearing surface. Flat washers are also used to give tightness to a joint, to prevent leakage, and especially to distribute pressure under the head of a nut or bolt.

A hardened steel washer is manufactured in accordance with ASTM Standard F436.
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Nominal Size

Material

Carbon Steel

Finish

Galvanized Plain Zinc Dichromate

Item #

Item Name

Nominal Size

Material

Finish

Package Quantity

Web Price

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25NWA3 N/A 1/4 F436 STRUCTURAL WASHER N/A 1/4 N/A Carbon Steel N/A Plain N/A 1000 $33.50 Add To Cart
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25NWA3D N/A 1/4 F436 STRUCTURAL WASHER ZINC DICHROMATE N/A 1/4 N/A Carbon Steel N/A Zinc Dichromate N/A 1000 $27.50 Add To Cart
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25NWA3G N/A 1/4 F436 STRUCTURAL WASHER GALVANIZED N/A 1/4 N/A Carbon Steel N/A Galvanized N/A 10000 $165.00 Add To Cart
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31NWA3D N/A 5/16 F436 STRUCTURAL WASHER ZINC DICHROMATE N/A 5/16 N/A Carbon Steel N/A Zinc Dichromate N/A 1000 $30.75 Add To Cart
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31NWA3G N/A 5/16 F436 STRUCTURAL WASHER GALVANIZED N/A 5/16 N/A Carbon Steel N/A Galvanized N/A 8000 $151.00 Add To Cart
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37NWA3 N/A 3/8 F436 STRUCTURAL WASHER N/A 3/8 N/A Carbon Steel N/A Plain N/A 600 $25.05 Add To Cart
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37NWA3D N/A 3/8 F436 STRUCTURAL WASHER ZINC DICHROMATE N/A 3/8 N/A Carbon Steel N/A Zinc Dichromate N/A 500 $21.12 Add To Cart
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37NWA3G N/A 3/8 F436 STRUCTURAL WASHER GALVANIZED N/A 3/8 N/A Carbon Steel N/A Galvanized N/A 7000 $174.47 Add To Cart
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37NWA3D N/A 3/8 F436 STRUCTURAL WASHER ZINC DICHROMATE N/A 3/8 N/A Carbon Steel N/A Zinc Dichromate N/A 600 $25.35 Add To Cart
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43NWA3D N/A 7/16 F436 STRUCTURAL WASHER ZINC DICHROMATE N/A 7/16 N/A Carbon Steel N/A Zinc Dichromate N/A 500 $26.62 Add To Cart
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43NWA3G N/A 7/16 F436 STRUCTURAL WASHER GALVANIZED N/A 7/16 N/A Carbon Steel N/A Galvanized N/A 4000 $138.90 Add To Cart
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50NWA3 N/A 1/2 F436 STRUCTURAL WASHER N/A 1/2 N/A Carbon Steel N/A Plain N/A 300 $42.97 Add To Cart
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50NWA3G N/A 1/2 F436 STRUCTURAL WASHER GALVANIZED N/A 1/2 N/A Carbon Steel N/A Galvanized N/A 2000 $138.25 Add To Cart
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50NWA3D N/A 1/2 F436 STRUCTURAL WASHER ZINC DICHROMATE N/A 1/2 N/A Carbon Steel N/A Zinc Dichromate N/A 400 $58.30 Add To Cart
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50NWA3G N/A 1/2 F436 STRUCTURAL WASHER GALVANIZED N/A 1/2 N/A Carbon Steel N/A Galvanized N/A 1250 $86.40 Add To Cart
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56NWA3 N/A 9/16 F436 STRUCTURAL WASHER N/A 9/16 N/A Carbon Steel N/A Plain N/A 300 $63.15 Add To Cart
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56NWA3G N/A 9/16 F436 STRUCTURAL WASHER GALVANIZED N/A 9/16 N/A Carbon Steel N/A Galvanized N/A 1700 $195.30 Add To Cart
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56NWA3D N/A 9/16 F436 STRUCTURAL WASHER ZINC DICHROMATE N/A 9/16 N/A Carbon Steel N/A Zinc Dichromate N/A 300 $55.35 Add To Cart
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62NWA3 N/A 5/8 F436 STRUCTURAL WASHER N/A 5/8 N/A Carbon Steel N/A Plain N/A 200 $42.75 Add To Cart
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62NWA3G N/A 5/8 F436 STRUCTURAL WASHER GALVANIZED N/A 5/8 N/A Carbon Steel N/A Galvanized N/A 1200 $123.85 Add To Cart
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62NWA3D N/A 5/8 F436 STRUCTURAL WASHER ZINC DICHROMATE N/A 5/8 N/A Carbon Steel N/A Zinc Dichromate N/A 300 $70.20 Add To Cart
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62NWA3D N/A 5/8 F436 STRUCTURAL WASHER ZINC DICHROMATE N/A 5/8 N/A Carbon Steel N/A Zinc Dichromate N/A 200 $46.80 Add To Cart
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75NWA3 N/A 3/4 F436 STRUCTURAL WASHER N/A 3/4 N/A Carbon Steel N/A Plain N/A 150 $38.32 Add To Cart
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75NWA3G N/A 3/4 F436 STRUCTURAL WASHER GALVANIZED N/A 3/4 N/A Carbon Steel N/A Galvanized N/A 1000 $123.62 Add To Cart
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75NWA3D N/A 3/4 F436 STRUCTURAL WASHER ZINC DICHROMATE N/A 3/4 N/A Carbon Steel N/A Zinc Dichromate N/A 250 $70.03 Add To Cart
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