Sioux Tools TURBO-MAX 6056 - Manual (Page 9)

Page 9
bOLT TORQUE
TORQUE DATA FOR STANDARD NUTS, bOLTS, AND CAPSCREwS.
Tighten all bolts to torques specified in chart unless otherwise noted. Check tightness of bolts periodically, using
bolt chart as guide. Replace hardware with same grade bolt.
NOTE: Unless otherwise specified, high-strength Grade 5 hex bolts are used throughout assembly of equipment.
bolt Torque for Standard bolts *
GRADE 2 GRADE 5 GRADE 8
“A” lb-ft (N.m) lb-ft (N.m) lb-ft (N.m)
1/4”
6 (8) 9 (12) 12 (16)
5/16” 10 (13) 18 (25) 25 (35)
3/8” 20 (27) 30 (40) 45 (60)
7/16” 30 (40) 50 (70) 80 (110)
1/2” 45 (60) 75 (100) 115 (155)
9/16” 70 (95) 115 (155) 165 (220)
5/8” 95 (130) 150 (200) 225 (300)
3/4” 165 (225) 290 (390) 400 (540)
7/8” 170 (230) 420 (570) 650 (880)
1” 225 (300) 630 (850) 970 (1310)
Torque figures indicated are valid for non-
greased or non-oiled threads and heads unless
otherwise specfied. Therefore, do not grease or
oil bolts or capscrews unless otherwise speci-
fied in this manual. When using locking
elements, increase torque values
by 5%.
* GRADE or CLASS value for bolts and cap-
screws are identified by their head markings.
Torque Specifications
CLASS 8.8 CLASS 9.8 CLASS 10.9
“A” lb-ft (N.m) lb-ft (N.m) lb-ft (N.m)
6 9 (13) 10 (14) 13 (17)
7 15 (21) 18 (24) 21 (29)
8 23 (31) 25 (34) 31 (42)
10 45 (61) 50 (68) 61 (83)
12 78 (106) 88 (118) 106 (144)
14 125 (169) 140 (189) 170 (230)
16 194 (263) 216 (293) 263 (357)
18 268 (363) -- -- 364 (493)
20 378 (513) -- -- 515 (689)
22 516 (699) -- -- 702 (952)
24 654 (886) -- -- 890 (1206)
bolt Torque for metric bolts *
GRADE-2 GRADE-5 GRADE-8
8.8
10.9
9.8
CLASS 8.8 CLASS 9.8 CLASS 10.9