TM 5-3895-379-23-2
0284
GENERAL TORQUE VALUES - Continued
Unified Inch Bolt and Cap Screw Torque Values - Continued
Table 5.
Unified Inch Screw Torque Values - Continued.
Grade 2 a (No Mark)
Grade 1 (No Mark)
Grade 5, 5.1, or 5.2
Grade 8 or 8.2
Lubricate
Lubricate
Lubricate
Lubricate
Dry c
Dry c
Dry c
Dry c
db
db
db
db
Thread
lb-ft
lb-ft
lb-ft
lb-ft
Size
lb-ft
lb-ft
lb-ft
lb-ft
(Nm)
(Nm)
(Nm)
(Nm)
(Nm)
(Nm)
(Nm)
(Nm)
1-1/8
300 (400)
375 (510)
300 (400)
375 (510)
670 (910)
850
1075
1350
(1150)
(1450)
(1850)
1-1/4
420 (570)
535 (725)
420 (570)
535 (725)
945
1200
1500
1920
(1280)
(1630)
(2050)
(2600)
1-3/8
550 (750)
700 (950)
550 (750)
700 (950)
1250
1580
2000
2500
(1700)
(2140)
(2700)
(3400)
1-1/2
730 (990)
930
730 (990)
930
1650
2100
2650
3350
(1250)
(1250)
(2250)
(2850)
(3600)
(4550)
a
Grade 2 applies for hex cap screws (not hex bolts) up to 6 in. (152 mm) long. Grade 1 applies for hex cap
screws over 6 in. (152 mm) long, and for all other types of bolts and screws of any length.
b
"Lubricated" means coated with a lubricant such as engine oil, or fasteners with phosphate and oil coatings.
c
"Dry" means plain or zinc plated without any lubrication.
*Tolerance is 10% unless otherwise specified.
0284-9
03/15/2011Rel(1.8)root(torquewp)wpno(M00222)
