Sterling Trucks Acterra MX - Manual (Page 11)

Torque Values for U.S. Customary Thread Fasteners With Dry (Unlubricated) * Plain (Unplated) Threads †
Thread
Diameter–Pitch
Regular Hex Flanged
Grade 5 Bolt
Grade 5 or B
Nut
Grade 8 or 8.2
Bolt
Grade 8 or C
Nut
Grade 8 or 8.2
Bolt
Grade G Nut
Torque: lbf·ft (N·m) Torque: lbf·ft (N·m) Torque: lbf·ft (N·m)
f230002 f230003 f230004 f230005 f230008 f230009
1/4–20 8 (11) 10 (14) —
1/4–28 9 (12) 12 (16) —
5/16–18 15 (20) 22 (30) 22 (30)
5/16–24 17 (23) 25 (34) —
3/8–16 28 (38) 40 (54) 40 (54)
3/8–24 31 (42) 45 (61) —
7/16–14 45 (61) 65 (88) 65 (88)
7/16–20 50 (68) 70 (95) —
1/2–13 70 (95) 95 (129) 95 (129)
1/2–20 75 (102) 110 (149) —
9/16–12 100 (136) 140 (190) 140 (190)
9/16–18 110 (149) 155 (210) —
5/8–11 135 (183) 190 (258) 190 (258)
5/8–18 155 (210) 215 (292) —
3/4–10 240 (325) 340 (461) 340 (461)
3/4–16 270 (366) 380 (515) —
7/8–9 385 (522) 540 (732) —
7/8–14 425 (576) 600 (813) —
1–8 580 (786) 820 (1112) —
1–12 635 (861) 900 (1220) —
1–14 650 (881) 915 (1241) —
* Threads may have residual oil, but will be dry to the touch.
† Male and female threads (bolt and nut) must both be unlubricated and unplated; if either is plated or lubricated, use Table 1 . Sterling recommends that all
plated and unplated fasteners be coated with oil before installation.
Table 2, Torque Values for U.S. Customary Thread Fasteners With Dry (Unlubricated) Plain (Unplated) Threads
General Information
00
Torque Specifications Tables: 00–03
Acterra Maintenance Manual, October 2008 00/4