WRENCH BOLT
SIZE DIA. ASTM ASTM ASTM ASTM
(mm) “A” (mm) “B” 4.6 8.8 9.8 10.9
8 5 1.8 (2.4) 5.1 (6.9) 6.5 (8.8)
10 6 3 (4) 8.7 (12) 11.1 (15)
13 8 7.3 (10) 21.1 (29) 27 (37)
16 10 14.5 (20) 42 (57) 53 (72)
18 12 25 (34) 74 (100) 73 (99) 93 (126)
21 14 40 (54) 118 (160) 116 (157) 148 (201)
24 16 62 (84) 167 (226) 181 (245) 230 (312)
30 20 122 (165) 325 (440) 449 (608)
Proper torque for metric fasteners used on Bush Hog equipment.
Recommended torque in foot pounds (newton Meters).*
*Use 75% of the specified torque value for
plated fasteners. Use 85% of the speci-
fied torque
Numbers appearing on bolt heads
indicate ASTM class.
METRIC
Wrench
Size “A”
Bolt
Diameter “B”
TORQUE SPECIFICATIONS
Proper torque for metric fasteners used on Bush Hog equipment.
Recommended torque in foot pounds (newton Meters).*
77