36
TORQUE SPECIFICATIONS
DO NOT use these values if a different torque value or tightening procedure is given for a specific application.
Fasteners should be replaced with the same or higher grade. If higher grade fasteners are used, these should only be
tightened to the strength of the original.
a
“Lubricated” means coated with a lubricant such as engine oil, or fasteners with phosphate and oil coatings.
b
“Dry” means plain or zinc plated without any lubrication
* Values with asterisk are in lb-in.
Grade 1
Grade 2 Grade 5, 5.1 or 5.2 Grade 8 or 8.2
Lubricated
a
Dry
b
Lubricated
a
Dry
b
Lubricated
a
Dry
b
Lubricated
a
Dry
b
SIZE
lb-ft lb-ft lb-ft lb-ft lb-ft lb-ft lb-ft lb-ft
8-32
14* 19* 22* 30* 31* 42*
10-24
21* 27* 32* 43* 45* 60*
1/4
2.8 3.5 4.5 5.5 7910 12.5
5/16
5.5 7 91115 18 21 26
3/8
10 13 16 20 26 33 36 46
7/16
16 20 26 32 41 52 58 75
1/2
25 31 39 50 63 80 90 115
9/16
36 45 56 70 90 115 130 160
5/8
50 62 78 100 125 160 160 225
3/4
87 110 140 175 225 280 310 400
7/8
140 175 140 175 360 450 500 650
1
210 270 210 270 540 675 750 975
METRIC COARSE THREAD
Grade 8.8
Grade 8.8 Grade 10.9 Grade 12.9
Dry Lubed Dry Lubed Dry Lubed
M6-1
8 6 11 8 13.5 10
M8-1.25 19
14 27 20 32.5 24
M10-1.5 37.5
28 53 39 64 47
M12-1.75
65 48 91.5 67.5 111.5 82
M14-2
103.5 76.5 145.5 108 176.5 131
M16-2 158.5
117.5 223.5 165.5 271 200
1 or 2
2
5
5.1
5.2
5
8
8.2
8
No Marks
No Marks
SAE
Grade
and Nut
Markings
SAE
Grade
and Head
Markings