Landoll 7431 VT Plus User Manual download pdf (Page 9)

STANDARD SPECIFICATIONS

2-3

Table 2-1: General Torque Specifications

LANDOLL CORPORATION

GENERAL TORQUE SPECIFICATIONS (REV. 4/97)

THIS CHART PROVIDES TIGHTENING TORQUES FOR GENERAL PURPOSE APPLICATIONS WHEN SPECIAL TORQUES ARE NOT SPECIFIED ON PROCESS

OR DRAWING.

ASSEMBLY TORQUES APPLY TO PLATED NUTS AND CAPSCREWS ASSEMBLED WITHOUT SUPPLEMENTAL LUBRICATION (AS RECEIVED CONDITION).

THEY DO NOT APPLY IF SPECIAL GRAPHITE MOLY-DISULFIDE OR OTHER EXTREME PRESSURE LUBRICANTS ARE USED.

WHEN FASTENERS ARE DRY (SOLVENT CLEANED), ADD 33% TO AS RECEIVED CONDITION TORQUE.

BOLT HEAD IDENTIFICATION MARKS INDICATE GRADE AND MAY VARY FROM MANUFACTURER TO MANUFACTURER.

THICK NUTS MUST BE USED ON GRADE 8 CAPSCREWS.

USE VALUE IN [ ] IF USING PREVAILING TORQUE NUTS.

TORQUE IS SPECIFIED IN FOOT POUNDS

UNC

Size

SAE Grade

UNF

Size

SAE Grade

1/4-20 4 [5] 6 [7] 9 [11] 1/4-28 5 [6] 7 [9] 10 [12]

5/16-18 8 [10] 13 [16] 18 [22] 5/16-24 9 [11] 14 [17] 20 [25]

3/8-16 15 [19] 23 [29] 35 [43] 3/8-24 17 [21] 25 [31] 35 [44]

7/16-14 24 [30] 35 [43] 55 [62] 7/16-20 27 [34] 40 [50] 60 [75]

1/2-13 35 [43] 55 [62] 80 [100] 1/2-20 40 [50] 65 [81] 90 [112]

9/16-12 55 [62] 80 [100] 110 [137] 9/16-18 60 [75] 90 [112] 130 [162]

5/8-11 75 [94] 110 [137] 170 [212] 5/8-18 85 [106] 130 [162] 180 [225]

3/4-10 130 [162] 200 [250] 280 [350] 3/4-16 150 [188] 220 [275] 320 [400]

7/8-9 125 [156] 320 [400] 460 [575] 7/8-14 140 [175] 360 [450] 500 [625]

1-8 190 [237] 408 [506] 680 [850] 1-14 210 [263] 540 [675] 760 [950]

1-1/8-7 270 [337] 600 [750] 960 [1200] 1-1/8-12 300 [375] 660 [825] 1080 [1350]

1-1/4-7 380 [475] 840 [1050] 1426 [1782] 1-1/4-12 420 [525] 920 [1150] 1500 [1875]

1-3/8-6 490 [612] 110 [1375] 1780 [2225] 1-3/8-12 560 [700] 1260 [1575] 2010 [2512]

1-1/2-6 650 [812] 1460 [1825] 2360 [2950] 1-1/2-12 730 [912] 1640 [2050] 2660 [3325]

1-3/4-5 736 [920] 1651 [2063] 2678 [3347] 1-3/4-12 920 [1150] 2063 [2579] 3347 [4183]

METRIC

COARSE THREAD METRIC CLASS 10.9 FASTENERS AND CLASS 10.0 NUTS AND THROUGH HARDENED FLAT WASHERS, PHOSPHATE COATED, ROCKWELL

“C” 38-45.

USE VALUE IN [ ] IF USING PREVAILING TORQUE NUTS.

Nominal

Thread

Diameter

Standard Torque Nominal

Thread

Diameter

Standard Torque

Newton-

Meters

Foot-

Pounds

Newton-

Meters

Foot-

Pounds

6 10 [14] 7 [10] 20 385 [450] 290 [335]

7 16 [22] 12 [16] 24 670 [775] 500 [625]

8 23 [32] 17 [24] 27 980 [1105] 730 [825]

10 46 [60] 34 [47] 30 1330 [1470] 990 [1090]

12 80 [101] 60 [75] 33 1790 [1950] 1340 [1450]

14 125 [155] 90 [115] 36 2325 [2515] 1730 [1870]

16 200 [240] 150 [180] 39 3010 [3210] 2240 [2380]

18 275 [330] 205 [245]

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 97 98

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Landoll 7431 VT Plus User Manual Page 9

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