TM 10-1670-296-20&P                                              0127 00 ANCILLARY EQUIPMENT FOR LOW VELOCITY AIR DROP SYSTEMS (LVADS) TORQUE LIMITS 0127 00-1 SCOPE This work package provides torque limits for general use fasteners.  The torque values given in this work package shall be used when specific torque values are not identified in the maintenance instructions.   TORQUE LIMITS All figures provided in table 1 are foot-pounds except those marked with an asterick (*), which are inch- pounds.  There is no difference between torque figures for fine or course threads.  The torque figure for finely threaded fasteners as compared to coarsely threaded fasteners of the same diameter may be slightly higher. Table 1.  Torque Limits Body Size or Outside Diameter of Fastener Type Minimum Tensile Strength Material ¹/₁₆ ¹/₁₀ ¹/₈ ¹/₄ ⁵/₁₆ ³/₈ ¹/₂ ³/₄ ⁷/₈ 1 1¹/₈ 1¹/₄ 1³/₈ 1¹/₂ SAE 0-1-2 74,000 PSI Low Carbon Steel 32 12 20 6 69 99 47 155 206 210 460 675 900 1100 SAE 3 100,000 PSI Medium Carbon Steel 47 17 30 9 103 145 69 234 372 551 872 1211 1624 1943 SAE 5 120,000 PSI Medium Carbon Heat Treat Steel 54 19 33 10 114 154 78 257 382 587 794 1105 1500 1775 SAE 6 133,000 PSI Medium Carbon Steel Quenched Tempered 69 24 43 125 150 209 106 350 550 825 1304 1815 2434 2913 SAE 7 133,000 PSI Medium Carbon Steel 71 25 44 13 154 215 110 360 570 840 1325 1825 2500 3000 SAE 8 150,000 PSI Medium Carbon Alloy Steel 78 29 47 14 169 230 119 380 600 900 1430 1975 2650 3200 Socket Head Cap Screw 160,000 PSI High Carbon Case Hardened Steel 84 33 54 16 180 250 125 400 640 970 1520 2130 2850 3450 Socket Set Screw 212,000 PSI High Carbon Case Hardened Steel 29 140* 18 70* 63 100 43 146 Machine Screw Yellow Brass 60,000 PSI Copper (CU) 63% Zinc (ZU) 37% 27 110* 17 65* 49 78 37 104 160 215 325 400 595 Silicone Bronze Type B 70,000 PSI Copper (CU) 96% Zinc (ZU) 2% Silicon (SI) 2% 30 125* 20 70* 53 88 41 117 180 250 365 450 655