Use where maximum tighten-ing torques are required Fasten collars, sheaves, gears, knobs on shafts. For mixed metals, use the torque of the lower of the two metals Torque range is normally calculated +/- 10%. 4 2.6 2.3 23.0 20.7 5 5.1 4.6 45.1 40.6 6 8.7 7.8 77.0 69.3 8 21.2 19.1 188 169 10 42 38 372 335 12 73 66 54 ft-lbs. torque values for bolts greater than 1½ in. (none), User Agent: 8.0 in-lbs. 1) Enter thread diameter nominal value in section Thread Size.Click on info button for more info. bolting torque table 1a - cold service astm a193 and astm a320 grade b8, cl2 stud bolts. Use of its content by anyone is the sole responsibility of that person and they assume all risk. Ball joint in link arm XC90 (M14) 100 Nm . This may be due to joint misalignment or strain, or it may be that the PTFE flare face has suffered mechanical damage. M16 x 2 157 67 30.9 29.3 85 M18 x 2.5 192 93 37.7 35.7 118 M20 x 2.5 245 131 48.3 45.8 167 M22 x 2.5 302 176 60.1 57.1 225 M24 x 3 353 226 69.5 65.9 287 M27 x 3 459 331 91.2 86.7 424 M30 x 3.5 561 450 111 105.3 575 *when µ = 0.14 results in *when µ = 0.10 results in. The below estimated torque calculations are … lbs. These torque values ? Socket Set Screws Alloy Steel Socket Set Screws Stainless Steel Half-dog or self-locking cup points only. Resolution may require a signed user agreement, verification on internal training, legal or executive personnel engagement. Relative Strength Marking 4.6 4.8 8.8 or 9.8 10.9 12.9 Bolt Markings Dia. The following torque values are suggested maximums based upon actual lab testing on clean and dry or near dry fasteners. Values though 7/16-inch diameter are stated in inch-pounds: ½-inch and over are stated in foot-pounds. Proper torque spec varies depending on the material, bolt grade or wether lubrication is used such as oil, wax, or anti-seize Always go to the manufacturer for proper torque specs if needed. Working on your car means you have to torque parts up when you fit them. Lubrication added to a dry bolt will typically reduce the torque value 15-25%. bolting torque table 1a - cold service astm a193 and astm a320 grade b8, cl2 stud bolts. For mixed metals, use the torque of the lower of the two metals Torque range is normally calculated +/- 10%. Always replace shear bolts with identical property class. Doing a bolt up to the specified torque should set the tension in the bolt to approximately 85% of the proof load given in the table on page 6. Torque Values and Friction Coefficient - All Metal Self Locking Nuts - Where Torque tightening equipment is used, account should be taken of the additional torque required to overcome the resistance of the prevailing torque locking nut. NEW - Component directly from stock. Various K Factors: Typical Steel Bolt: 0.20: Zinc-Plated: 0.20: Lubricated: 0.18: Cadmium-Plated: 0.16: Miscellaneous Data: Applied Load: tensile: lb Help. TIGHTENING TORQUE FOR CLASS 8.8 BOLTS (METRIC COARSE) BOLT DIAMETER X PITCH THREAD STRESS AREA mm2 TIGHTENING TORQUE … The torque recommendations are calculated assuming a coefficient of friction of 0.14, which requires a good quality lubricant. Cone, half-dog, flat, oval, cup and self-locking cup points standard Use stainless for corrosive, cryo- Using correct torque levels is very important. Zinc Plated co-efficient of friction = 125 (zinc at 8 microns thick). bolting torque table 1 - astm a193 and astm a320 grade b8, cl2 stud bolts. Torque Settings. Tightening Torque Clamp Load (lbs.) Importance of Torque in Bussing A critical concept in understanding bus lug torque specifications is the fact that the pressure of the lug connection has more to do with lowering the resistance of the electrical connection than the size of the lug itself. bolting torque table 1 - astm a193 and astm a320 grade b8, cl2 stud bolts. Setting the correct torque on your torque wrench is critical to prevent under or over tightening of your bolts or nuts. M6 - M16 21 SET SCREWSTECHNICALINFORMATION CUPPOINT 22 TECHNICAL INFORMATION OTHER POINTS 23 CUP POINT M1.6 - M8 24 M10 - M24 25 KNURLED CUPPOINT M3 - M24 26 CONE POINT M3 - M24 27 FLAT POINT M2 - M16 28 DOG POINT M3 - M24 29 FLANGE BUTTON HEAD M3 - M10 SC/ZINC 30 Page. Doing a bolt up to a specific torque should set the tension in the bolt to appeoximately 85% of the prrof load given in the table. The following torque values are suggested maximums based upon actual lab testing on clean and dry or near dry fasteners. Torque Values and Friction Coefficient - All Metal Self Locking Nuts - Where Torque tightening equipment is used, account should be taken of the additional torque required to overcome the resistance of the prevailing torque locking nut. The chart above is approximate values and have not been validated for accuracy. M16x1.5 10.9 303 Nm (ft. Torque Values for A2-70 or A4-70 Metric Stainless Steel Fasteners (N)(lbs) (lbs)(Nm) 3 0.5 3522 792 2264 509 1698 382 0.81 7.2 in-lbs 0.95 8.4 in-lbs 906 204 4 0.7 6145 1381 3950 888 2963 666 1.90 2.21 1580 355 5 0.8 9928 2232 6382 1435 4787 1076 3.83 4.47 2553 574 diameter are based on 30 ksi yield strength. The use of washers is recommended to ensure correct even torque. Shear bolts are designed to fail under predetermined loads. For Cold-Formed U-Bolts which have been torqued to a set preload are recommended to be re-torqued after a short time to take up the stretch in the set of the material. lbs.) ?should be used on all fasteners unless otherwise. Used rods: Torque to 285 in. M16x1.5 thread M16x1.5 8.8 216 Nm (ft. This, and all subsequent torquing, of bolts should be undertaken at ambient temperature. G F = Ratio of yield point. 2 Sets (Min Order) Guangzhou Jingyumang Electronic Commerce Co., Ltd. CN 1 YRS. The chart below is for torque settings on 4.8, 8.8, 9.8, 10.9 and 12.9 metric steel bolts. Torque pattern. Bushing housing upper link arm in sub-frame rear XC90 (M12) 1st step, 65 Nm . one time only. K Factor: advanced users only: Help. ft Multiply by 1.356 to obtain N*m CLASS 4.6 240 NL 0.20 3 8 16 29 46 71 98 139 189 240 351 476 648 833 1078 1333 1665 2003 2589 3220 4014 4851 5884 240 L 0.15 3 6 12 21 34 53 74 104 142 180 263 357 486 625 808 1000 1248 1502 1942 2415 3010 3638 4413 Fasteners should be replaced with the same or higher property class. Metric Recommended Bolt Torque. For other friction conditions, significant modifications may be required. Bolt Diameter x Pitch Thread Stress Area mm 2 *When μ = 0.10 Results in: *When μ = 0.14 Results in: Tightening Torque Nm Pre-load kN Tightening Torque Nm Bolt Diameter x Pitch Thread Stress Area mm 2 *When μ = 0.10 Results in: *When μ = 0.14 Results in: Tightening Torque Nm Pre-load kN Tightening Torque Nm Preloads and tightening torque for Metric ISO countersunk head steel screws with hexagon socket head or similar heads. 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