J&M PRO 450 - Manual (Page 23)

23
BOLT TORQUE SPECIFICATIONS
2.10 Bolt Torque Specifications
Standard Dry Torque in Foot-Pounds
Bolt Dia.
(in.)
Pitch
(threads/
inch)
SAE
Grade 0-1-2
74,000 psi
Low Carbon
Steel
SAE
Grade 3
100,000 psi
Med. Carbon
Steel
SAE
Grade 5
120,000 psi
Med. Carbon
Heat T. Steel
SAE
Grade 6
133,000 psi
Med. Carbon
Temp. Steel
SAE
Grade 7
133,000 psi
Med. Carbon
Alloy Steel
SAE
Grade 8
150,000 psi
Med. Carbon
Alloy Steel
1/4 20 6 9 10 12.5 13 14
5/16 18 12 17 19 24 25 29
3/8 16 20 30 33 43 44 47
7/16 14 32 47 54 69 71 78
1/2 13 47 69 78 106 110 119
9/16 12 69 103 114 150 154 169
5/8 11 96 145 154 209 215 230
3/4 10 155 234 257 350 360 380
7/8 9 206 372 382 550 570 600
1 8 310 551 587 825 840 700
1-1/8 7 480 872 794 1304 1325 1430
1-1/4 7 375 1211 1105 1815 1825 1975
1-3/8 6 900 1624 1500 2434 2500 2650
1-1/2 6 1100 1943 1775 2913 3000 3200
1-5/8 5.5 1470 2660 2425 3985 4000 4400
1-3/4 5 1900 3463 3150 5189 5300 5650
1-7/8 5 2360 4695 4200 6980 7000 7600
2 4.5 2750 5427 4550 7491 7500 8200