Sheet1Bolt Torque CalculatorsAutus InternationalBolt Diameter (D)0.78Inches (0.000)Thread (T.P.I.)8Threaded per inchYield Strength (Sy)105000P.S.I.Joint Type (P)0.1Nut Factor (K)0.283.417395131946.4571870133lbf/ftStress Area (As) inBolt Torque (T)Nut Factor (K)Joint Type (P)0.34000271758,919.78ozf / inAs received, Alloy or Mild Steel0.200Shear0.1 ~ 0.02557.49lbf / inAs received, Stainless Steel0.300Tension (Gasket)0.35 ~ 0.446.46lbf / ftCadmium plate (dry)0.200Tension (No Gasket)0.5 ~ 0.662.98N / mZinc coating (Hot-Dip Galvanized)0.300Vibration0.7 or more6,297.74cN / mMoly paste 700F0.067Bolt Stretch measured0.85 ~ 0.9562,977.36mN / mAnti-seize HD 2400F0.085Structural Shear1.0 or more642,317.07gf / cmCopper anti-seize 1800F0.100642.32kgf / cmCopper-Graphite anti-seize 1800F0.1006.42kgf / mNickel andti-seize 2600F0.110API SA20.117Machine oil0.150Calculator TablesYield Strength (Sy)Sy (Imperial)P.S.I.Sy (Metric)P.S.I.Diameter (mm.)inchA193 Gr. B5 (4" & under)80000Class 3.625602Pitch (mm.)T.P.I.A193 Gr. B6 (4" & under)85000Class 4.634136Sy Conversion Tables to P.S.I.A193 Gr. B6X (4" & under)70000Class 4.845515A193 Gr. B7 (2.1/2" & under)105000Class 5.642670N/m = PaP.S.I.A193 Gr. B7 (over 2.1/2" to 4")95000Class 5.856893N/mm = MPaP.S.I.A193 Gr. B7 (4" to 7")75000Class 6.868272BarP.S.I.A193 Gr. B7M (2.1/2" & under)80000Class 8.891030Atm = kgf/cmP.S.I.A193 Gr. B7M (over 2.1/2" to 4")80000Class 9.8102408kgf/mmP.S.I.A193 Gr. B7M (4" to 7")75000Class 10.9128010KSIP.S.I.A193 Gr. B16 (2.1/2" & under)105000Class 12.9153612A193 Gr. B16 (over 2.1/2" to 4")95000JIS B1186 F10T127800A193 Gr. B16 (4" to 7")85000JIS B1186 F11T134900===> for fill in dataA193 Gr. B8, B8C, B8M, B8T Class 130000A193 Gr. B8, B8C, B8T Class 2(3/4" or 20 mm. and under)100000(3/4" to 1" or 20 to 25 mm.)80000(1" to 1.1/4" or 25.4 to 34.6 mm.)65000(1.1/4" to 1.1/2" or 32 to 40 mm.)50000A193 Gr. B8M, B8MN Class 2(3/4" or 20 mm. and under)95000(3/4" to 1" or 20 to 25 mm.)80000(1" to 1.1/4" or 25.4 to 34.6 mm.)65000(1.1/4" to 1.1/2" or 32 to 40 mm.)50000ASTM A30746860ASTM A32579520ASTM A490129220