Transcription of REFERENCE TABLES - Union Millwright
1 REFERENCE TABLEST hreadsper inchOutsidePitchRootTap DrillDecimalNCNFD iameterDiameterDiameterApprox. 75%Equiv. ofSizeUNCUNFI nchesInchesInchesFull ThreadTap Drill0 .. National and Unified Coarse andFine Thread Dimensions and Tap Drill Sizesp = pitch =1No. thread per inchd = depth = p X .649519f= flat = p8pitch diameter = D .6495 Npdff60 (Continued on next page.).000 REFERENCE TABLESA merican National and Unified Coarse andFine Thread Dimensions and Tap Drill Sizes (continued)Threadsper inchOutsidePitchRootTap DrillDecimalNCNFD iameterDiameterDiameterApprox. 75%Equiv. ofSizeUNCUNFI nchesInchesInchesFull ThreadTap Drill108 1/807 1/80 3 1/407 7 1/40 11 3/806 7 3/80 19 1/206 11 1/20 27 3/405 9 1/2 25 1/404 1/2 1 1/204 1/2 1 3/404 1 3 1/404 1/204 1 3/404 1 3
