DANSMC BOLT TORQUE GUIDE

Use as a Very Loose & Gooey guide only.
For best results
Check your Shop Manual !

US Bolts
Maximum Torque, in foot-pounds, for clean, dry threads

Bolt size - Thread pitch Grade 2 Grade 5 Grade 8
1/4-20 6 10 12
1/4-28 7 12 15
5/16-18 13 20 24
5/16-24 14 22 27
3/8-16 23 36 44
3/8-24 26 40 48
7/16-14 37 52 63
7/16-20 41 57 70
1/2-13 57 80 98
1/2-20 64 90 110
9/16-12 82 120 145
9/16-18 91 135 165
5/8-11 111 165 210
5/8-18 128 200 245
3/4-10 200 285 335
3/4-16 223 315 370

Metric Bolts
Maximum Torque, in foot-pounds, for clean, dry threads
Check your Shop Manual !

Bolt size Low Grade Grade 8.8 Grade 10.9 Grade 12.9
6mm 3-5 7 10 12
8mm 8-12 17 24 29
10mm 15-22 33 47 57
12mm 39 59 83 100
14mm 60 101 131 158
16mm 60-94 146 202 247
18mm 60-130 201 283 340
20mm 166-188 285 401 482