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    IS 1821 : 1987 ( ISO 273 : 1979)     (Reaffirmed Year : 2019 )

    Dimensions for clearance holes for bolts and screws (Third Revision

    Technical Committee : PGD 37
    Status : Active

    No. of Amendments : 0
    Price : ₹ 1,300.00 ( US$ 15.00)

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