2x56 UNF / NF Helical Thread Insert Tap 2-56

2.56" Use to produce threads for helical coil wire screw thread inserts only • S.T.I. taps are oversized so the thread produced accepts a helical coil wire screw thread insert of the same nominal size and pitch • Taps are marked with the nominal size and pitch of the bolt to be used • Taps are marked with “S.T.I.” 1/4x28

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