Core hole diameters Tapping ISO metric screw thread Thread insert 60° 60° X 't w D /VpV / D1l K H Dif D UNJC Coarse pitch thread in accordance wi

Core hole diameters Tapping ISO metric screw thread Thread insert 60° 60° X 't w D /VpV / D1l K H Dif D UNJC Coarse pitch thread in accordance with ASME B1.15 and ISO 3161 EG M ISO metric coarse pitch thread in accordance with DIN 8140 D D1 D D1 0 P threads per inch min. mm 3B max. mm 3B 0 mm 0 P mm min. mm max. mm V4 0 mm No. 1-64 UNJC 1.467 1.570 1.50 EG M 2.5 0.45 2.597 2.697 2.65 No. 2-56 UNJC 1.742 1.860 1.80 EG M 3 0.50 3.109 3.221 3.15 No. 3-48 UNJC 1.999 2.137 2.05 EG M 3.5 0.60 3.630 3.755 3.70 No. 4-40 UNJC 2.226 2.391 2.30 EG M 4 0.70 4.152 4.292 4.20 No. 5-40 UNJC 2.556 2.721 2.65 EG M 5 0.80 5.174 5.334 5.25 No. 6-32 UNJC 2.732 2.938 2.80 EG M 6 1.00 6.217 6.407 6.30 No. 8-32 UNJC 3.393 3.599 3.50 EG M 8 1.25 8.217 8.483 8.40 No. 10-24 UNJC 3.795 4.064 3.90 EG M 10 1.50 10.324 10.560 10.50 No. 12-24 UNJC 4.455 4.704 4.60 EG M 12 1.75 12.380 12.645 12.50 1/4-20 UNJC 5.113 5.387 5.20 EG M 14 2.00 14.433 14.733 14.50 5/16-18 UNJC 6.563 6.833 6.70 EG M 16 2.00 16.433 16.733 16.50 3/8-16 UNJC 7.978 8.255 8.10 EG M 18 2.50 18.542 18.897 18.80 7/16-14 UNJC 9.344 9.637 9.50 EG M 20 2.50 20.542 20.897 20.80 1/2-13 UNJC 10.796 11.093 10.90 EG M 22 2.50 22.542 22.897 22.80 9/16-12 UNJC 12.226 12.480 12.30 EG M 24 3.00 24.649 25.049 24.75 5/8-11 UNJC 13.625 13.902 13.70 3/4-10 UNJC 16.575 16.880 16.75 UNJF Fine thread in accordance with ASME B1.15 and ISO 3161 r Ik k r ISO metric fine pitch thread EG MF acc. to DIN 8140 D D1 D D1 0 P threads per inch min. mm 3B max. mm 3B 0 mm 0 x P min. mm max. mm 0 mm No. 0-80 UNJF 1.215 1.297 1.25 EG M 8 x 1 8.217 8.407 8.3 No. 1-72 UNJF 1.510 1.602 1.55 EG M 10 x 1 10.217 10.407 10.3 No. 2-64 UNJF 1.797 1.900 1.85 EG M 10 x 1.25 10.217 10.438 10.4 No. 3-56 UNJF 2.073 2.191 2.10 EG M 12 x 1.25 12.217 12.438 12.4 No. 4-48 UNJF 2.329 2.467 2.40 EG M 12 x 1.5 12.324 12.560 12.5 No. 5-44 UNJF 2.613 2.763 2.70 EG M 14 x 1.5 14.324 14.560 14.5 No. 6-40 UNJF 2.886 3.051 2.95 EG M 16 x 1.5 16.324 16.560 16.5 No. 8-36 UNJF 3.479 3.662 3.60 EG M 18 x 1.5 18.324 18.560 18.5 No. 10-32 UNJF 4.053 4.253 4.15 EG M 18 x 2 18.433 18.733 18.5 No. 12-28 UNJF 4.602 4.815 4.70 EG M 20 x 1.5 20.324 20.560 20.5 1/4-28 UNJF 5.466 5.662 5.60 5/16-24 UNJF 6.907 7.110 7.00 3/8-24 UNJF 8.494 8.680 8.60 7/16-20 UNJF 9.875 10.083 10.00 1/2-20 UNJF 11.463 11.660 11.50 9/16-18 UNJF 12.913 13.123 13.00 5/8-18 UNJF 14.500 14.702 14.50 D 466 WALTER Prototyp Technical information threading