ADJUSTMENTS 3
en-13
3.6 TORQUE SPECIFICATION ___________________________________________________
Jacobsen uses Grade 5 bolts as standard, unless otherwise noted.
NOTICE
All torque values included in these charts are approximate and are for reference only. Use of these torque values is
at your sole risk. Jacobsen is not responsible for any loss, claim, or damage arising from the use of these charts.
Extreme caution should always be used when using any torque value.
AMERICAN NATIONAL STANDARD FASTENERS
SIZE UNITS
GRADE 5 GRADE 8
#6-32 in-lbs (Nm) 20 (2.3) –
#8-32 in-lbs (Nm) 24 (2.7) 30 (3.4)
#10-24 in-lbs (Nm) 35 (4.0) 45 (5.1)
#10-32 in-lbs (Nm) 40 (4.5) 50 (5.7)
#12-24 in-lbs (Nm) 50 (5.7) 65 (7.3)
1/4-20 in-lbs (Nm) 95 (10.7) 125 (14.1)
1/4-28 in-lbs (Nm) 95 (10.7) 150 (17.0)
5/16-18 in-lbs (Nm) 200 (22.6) 270 (30.5)
5/16-24 in-lbs (Nm) 240 (27.1) 300 (33.9)
3/8-16 ft-lbs (Nm) 30 (40.7) 40 (54.2)
3/8-24 ft-lbs (Nm) 35 (47.5) 45 (61.0)
7/16-14 ft-lbs (Nm) 50 (67.8) 65 (88.1)
7/16-20 ft-lbs (Nm) 55 (74.6) 70 (94.9)
1/2-13 ft-lbs (Nm) 75 (101.7) 100 (135.6)
1/2-20 ft-lbs (Nm) 85 (115.3) 110 (149.2)
9/16-12 ft-lbs (Nm) 105 (142.4) 135 (183.1)
9/16-18 ft-lbs (Nm) 115 (155.9) 150 (203.4)
5/8-11 ft-lbs (Nm) 150 (203.4) 195 (264.4)
5/8-18 ft-lbs (Nm) 160 (217.0) 210 (284.8)
3/4-10 ft-lbs (Nm) 170 (230.5) 220 (298.3)
3/4-16 ft-lbs (Nm) 175 (237.3) 225 (305.1)
7/8-14 ft-lbs (Nm) 300 (406.8) 400 (542.4)
AMERICAN NATIONAL STANDARD FASTENERS
SIZE UNITS
GRADE 5 GRADE 8
METRIC FASTENERS
SIZE UNITS Non Critical
Fasteners
into
Aluminum
M4 Nm (in-lbs) 1.2 (11) 1.7 (15) 2.9 (26) 4.1 (36) 5.0 (44) 2.0 (18)
M5 Nm (in-lbs) 2.5 (22) 3.2 (28) 5.8 (51) 8.1 (72) 9.7 (86) 4.0 (35)
M6 Nm (in-lbs) 4.3 (38) 5.7 (50) 9.9 (88) 14.0 (124) 16.5 (146) 6.8 (60)
M8 Nm (in-lbs) 10.5 (93) 13.6 (120) 24.4 (216) 33.9 (300) 40.7 (360) 17.0 (150)
M10 Nm (ft-lbs) 21.7 (16) 27.1 (20) 47.5 (35) 66.4 (49) 81.4 (60) 33.9 (25)
M12 Nm (ft-lbs) 36.6 (27) 47.5 (35) 82.7 (61) 116.6 (86) 139.7 (103) 61.0 (45)
M14 Nm (ft-lbs) 58.3 (43) 76.4 (55) 131.5 (97) 184.4 (136) 219.7 (162) 94.9 (70)