Instructions & Felt Seal List 2300/2400 Page 4
Torque Chart General Bolt and Screw Connections Bolts
Socket Head Screw
(ft -lb)
(ft -lb)
(ft -lb)
(in.-lb)
A574
SIZE:
A307, or A325, or SHC, or
SIZE:
GRADE
GRADE
GRADE
2 2 5
5 6
8 9
1/4”
#3-48 #3-56 #4-40 #4-48 #5-40 #5-44 #6-32 #6-40 #8-32 #8-36 #10-24 #10-32 1/4-20 1/4-28 5/16-18 5/16-24
9
5/16” 3/8" 7/16"
13
18
10 13 14
10 15
23 40 65 95
33 52 95
1/2"
20 40 55
20
9/16"
135 185 325 500 800 1100 1600 2100 2750
21
5/8" 3/4" 7/8"
130 230 370 560
25 28 48
100 165 250 350 500 650 850
1"
51
1-1/8" 1-1/4" 1-3/8" 1-1/2"
810 1120 1500 1940
70 76
160 180 325 360
M10 M12 M14 M16 M20 M24 M30 M36
10
25 65 95
35 95
20 40 55
135 185
130 230 560 810
100 250 350 650
325 800 1100 2100
1500
Torque values are for dry bolts. If the connection bolts are oil lubricated, use 90% of the torque values.
If they are coated with anti-seize, use 60% of the torque values.
WARNING: Situations dangerous to personnel and property may exist with the operation and maintenance of any combustion equipment. The presence of fuels, oxidants, hot and cold combustion products, hot surfaces, electrical power in control and ignition circuits, etc., are inherent with any combustion application. Components in combustion systems may exceed 160°F (71°C) surface temperatures and present hot surface contact hazard. Fives North American Combustion, Inc. suggests the use of combustion systems that are in compliance with all Safety Codes, Standards, Regulations and Directives; and care in operation.
CONTACT fna.sales@fivesgroup.com T +1 800 626 3477 - F +1 216 373 4237
Fives North American Combustion, Inc. 4455 East 71st Street - Cleveland, OH 44105 - USA www.fivesgroup.com
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