stellar labs EC5000 - Torque Data Chart

Maintenance 
When using the torque data in the chart, the following rules should be observed:
• Bolt manufacturer’s particular specifications should be consulted when provided.
• Flat washers of equal strength must be used.
• All torque measurements are given in foot-pounds. To convert to inch-pounds, multiply
by 12.
• Torque values specified are for bolts with residual oils or no special lubricants applied. If
special lubricants of high stress ability, such as Never-Seez compound graphite and oil,
molybdenum disulphite, colloidal copper or white lead are applied, multiply the torque
values in the charts by the factor .90. The use of Loctite does not affect the torque
values listed above.
• Torque values for socket-head capscrews are the same as for Grade 8 capscrews.
Size Bolt DIA Plain Plated Plain Plated Plated
(DIA-TPI) (Inches) (Ft-Lb) (Ft-Lb) (Ft-Lb) (Ft-Lb) (Ft-Lb)
5/16-18 0.3125 17 13 25 18 22
3/8-16 0.3750 31 23 44 33 39
7/16-14 0.4375 49 37 70 52 63
1/2-13 0.5000 75 57 105 80 96
9/16-12 0.5625 110 82 155115 139
5/8-110.6250 150 115 220 160 192
3/4-10 0.7500 265 200375280340
7/8-9 0.8750 395 295 605 455549
1-8 1.000590445910680823
1 1/8-7 1.1250 795 595 1290 965 1167
1 1/4-7 1.2500 1120 840 1815 1360 1646
1 3/8-6 1.3750 1470 1100 2380 1780 2158
1 1/2-6 1.500 1950 1460 3160 2370 2865
GRADE 5 GRADE 8 GRADE 9
Torque Data Chart