Section 9
ILLUSTRATIONS AND PARTS LIST
90
9.18 TORQUE TABLE FOR METRIC FASTENERS
( +/ -- 10%)
M3x0, 5 1.06 .9 .7 2.19 1.8 1.4 3.66 3 2.4
M4x0, 7 1.84 2 1.6 3.82 4.2 3.3 6.39 7 5.4
M5x0, 8 2.98 4 3.1 6.17 8.3 6.4 10.3 14 11
M6x1 4.23 6.8 5.3 8.75 14 11 14.6 24 18
M8x1,257.69171315.9342726.6 5845
M10x1, 5 12.2 33 25 25.2 67 52 42.2 113 87
M12x1, 75 17.7 56 43 36.7 115 89 61.3 193 149
M16x2 32.9 136 104 68.2 281 216 114 471 362
M20x2, 5 51.4 267 205 110 572 440 178 925 711
M24x3 74.0 459 353 256 1592 1223
M30x3, 5 118 911 699 408 3156 2422
PROPERTY CLASS 5.6 PROPERTY CLASS 8.8 PROPERTY CLASS 12.9
SIZE
CLAMP
LOAD
(kN)
DRY LUB.
CLAMP
LOAD
( kN ) DRY LUB.
TIGHTENING
TORQUE
(N
D
m)
TIGHTENING
TORQUE
(N
D
m)
TIGHTENING
TORQUE
(N
D
m)
CLAMP
LOAD
( kN ) DRY LUB.
Basic pitch diameters are used to calculate torque values. Coefficients of friction used are .2 and .15 for
dry and lubricated conditions, respectively. Clamp load is calculated by arbitrarily assuming usable bolt
strength is 75% of bolt proof load (PSI) times tensile stress area (IN
2
) of thread section of each bolt size.
CLASS MATERIAL
TENSILE
PROPERTY YIELD PROOF
N/mm
2
N/mm
2
N/mm
2
SIZE mm INDENTIFICATION
5.6 1988 (E) 500 300 280 Thru 39 5.6
5.6
8.8 1988 (E) 830 600 > 16 Thru 39 8.8
8.8
12.9 1988 (E) 1220 970 Thru 39 12.9
12.9
ALL DATA AND INFORMATION ON THIS SHEET IS CONFIDENTIAL AND PROPRIETARY TO SULLAIR CORPORATION
ISO 898--1
ISO 898--1
ISO 898--1
800 580 < = 16
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