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    ASTM F436/F436M Type 3 Clipped Washer

    ASTM F436/F436M Type 3 Clipped Washers are weathering steel hardened washers featuring a clipped edge for use in restricted installation areas. These washers combine the benefits of corrosion resistance with efficient load distribution, making them suitable for structural applications where space constraints and environmental exposure are key considerations.

    ASTM F436 Hardened Clipped Circular

    ASTM F436 Hardened Clipped Circular (Inch Washers)

    Nominal WasherD Size Inch Circular Clipped Clipped
    Inside Diameter (I.D)Inch Outside Diameter (O.D.) Inch
    min max min max Minimum Edge Distance (E)A
    1/4 0.281 0.313 0.593 0.657 0.219
    5/16 0.344 0.376 0.656 0.720 0.281
    3/8 0.406 0.438 0.781 0.845 0.344
    7/16 0.469 0.501 0.890 0.954 0.406
    1/2 0.531 0.563 1.031 1.095 0.438
    9/16 0.625 0.657 1.156 1.220 0.500
    5/8 0.688 0.720 1.281 1.345 0.563
    3/4 0.813 0.845 1.436 1.500 0.656
    7/8 0.938 0.970 1.718 1.782 0.781
    1 1.063 1.126 1.937 2.063 0.875
    11/8 1.188 1.251 2.187 2.313 1.000
    11/4 1.375 1.438 2.437 2.563 1.094
    13/8 1.500 1.563 2.687 2.813 1.219
    11/2 1.625 1.688 2.937 3.063 1.313
    13/4 1.875 1.938 3.312 3.438 1.531
    2 2.125 2.188 3.687 3.813 1.750
    21/4 2.375 2.438 3.937 4.063 2.000
    21/2 2.625 2.688 4.437 4.563 2.188
    23/4 2.875 2.938 4.937 5.063 2.406
    3 3.125 3.188 5.437 5.563 2.625
    31/4 3.375 3.500 5.875 6.125 2.875
    31/2 3.625 3.750 6.375 6.625 3.063
    33/4 3.875 4.000 6.875 7.125 3.313
    4 4.125 4.250 7.375 7.625 3.500
    • (A) Clipped edge E shall be not closer than 7/8 of the bolt diameter from the center of the washer.
    • (D) Nominal washer sizes are intended for use with fasteners of the same nominal thread size.

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