ELORA TOOL CATALOGUE

504 CONVERSION TABLE OF METRIC, AMERICAN AND BRITISH SIZES FOR SPANNER OPENINGS AND THREAD DIAMETERS Metric Sizes American Sizes British Sizes Spanner Openings Threads Spanner Openings Threads Threads Spanner Openings Metric Sizes acc. to DIN ISO 272 ISO R272 1968 French Stan- dards ISO R272 1962 United Standard American Standard B 18.2.1972 Nuts Bolts + Screws Nominal Size = Size to be ordered minimum size [mm] acc. to DIN 475/2 or ISO 691 maximum size [mm] acc. to DIN 475/2, row 1 maximum size [mm] acc. to DIN 475/2, row 2 standard hexagon large hexagon bolt with flange nut with flange standard hexagon small hexagon NFE27-111-1930 Nominal Size = Size to be ordered decimal - inch decimal - metric Bolts Nuts normal series BS 176B heavy series BS 1769 finished thick series heavy series regular square series finished and regular bolt serie hexagon head cap screws finished and heavy bolt series Nominal Size = Size to be ordered BS 916, BS 1083 decimal - inch decimal - metric w X Q y 2.7/8 2.8750 73,03 75 75,15 75,85 76,15 48 48 2.15/16 2.9375 74,61 1.7/8 1.7/8 3 3.0000 76,20 2 2 2 2 2 2 *77 77,15 77,85 78,15 52 80 80,15 80,85 81,15 52 52 56 3.1/8 3.1250 79,37 2 2 2 2 2.1/4 3.150 80,01 *82 82,15 82,85 82,15 3.1/4 3.2500 82,55 85 85,15 85,85 86,15 56 56 3.3/8 3.3750 85,72 2.1/4 2.1/4 2.1/4 *88 88,15 88,85 88,15 60 3.1/2 3.5000 88,90 2.1/4 2.1/4 2.1/2 3.550 90,17 90 90,15 90,85 91,15 60 60 3.5/8 3.6250 92,08 *94 94,15 94,85 94,15 64 95 95,15 95,85 96,15 64 64 3.3/4 3.7500 95,25 2.1/2 2.1/2 2.1/2 2.3/4 3.890 98,80 3.7/8 3.8750 98,42 2.1/2 2.1/2 100 100,15 100,85 101,15 68 68 68 4 4.0000 101,60 105 105,20 106,00 106,40 72 72 72 4.1/8 4.1250 104,77 2.3/4 2.3/4 2.3/4 3 4.180 106,17 110 110,20 111,00 111,40 76 76 76 4.1/4 4.2500 107,95 2.3/4 2.3/4 115 115,20 116,00 116,40 80 80 4.1/2 4.5000 114,30 3 3 3 3.1/4 4.530 115,06 *116 116,20 117,00 117,40 80 120 120,20 121,00 121,40 85 85 4.5/8 4.6250 117,47 3 3 *125 125,20 126,00 126,40 4.7/8 4.8750 123,82 3.1/4 3.1/2 4.850 123,19 5 5.0000 127,00 3.1/4 130 130,20 131,00 131,40 90 90 135 135,20 136,00 136,40 95 95 5.1/4 5.2500 133,35 3.1/2 3.1/2 3.3/4 5.180 131,57 5.3/8 5.3750 136,52 3.1/2 *140 140,20 141,00 141,40 4 5.550 140,97 145 145,20 146,00 146,40 100 100 5.5/8 5.6250 142,87 3.3/4 3.3/4 5.3/4 5.7500 146,05 3.3/4 150 150,25 151,25 105 105 6 6.0000 152,40 4 4 155 155,25 156,25 110 110 6.1/8 6.1250 155,57 4 4.1/2 6.380 162,05 *160 160,25 161,25 165 165,25 166,25 115 170 170,25 171,25 175 175,25 176,25 120 180 180,25 181,25 125 5 7.300 185,42 *) Nominal sizes are not included in DIN 475