If threads are not lubricated prior to assembly or are not
plated use Torque Spec. ES-100.0
* = Torque Values for Bolts and Screws longer than 6”
Fasteners as supplied by the vendor are considered not
lubricated.
NOTE:
8 - 5
GENERAL INFORMATION
TORQUE RATINGS
REFER TO THIS TABLE WHEN TORQU-
ING HYDRAULIC CONNECTIONS (Piping
& Cylinders).
ES - 100.1
TORQUE RATINGS
FOR
LUBRICATED OR PLATED FASTENERS
TORQUE VALUES TO BE WITHIN ± 5%
ALL FIGURES IN FOOT POUND
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
7/8
1
1-1/8
1-1/4
1-3/8
1-1/2
1-3/4
2
2-1/4
2-1/2
NOM. DIA. IN. GRADE 2 GRADE 5 GRADE 8
5 - * 3 7 10
9 - * 5 14 20
16 - * 9 25 35
25 - * 15 40 55
40 - * 20 60 85
55 - * 30 85 120
75 - * 45 120 170
135 - * 80 210 300
130 340 485
200 515 720
280 635 1,030
400 890 1,450
520 1,175 1,900
695 1,560 2,530
1,100 1,825 3,980
1,650 2,750 6,000
2,400 4,000 8,760
3,300 5,500 12,000
The above information was compiled for U.N.C. Threaded Fasteners.
GRADE 2
GRADE 5
GRADE 8
BOLT HEAD MARKING