Ventrac 4520P - Standard Torque Specifications Table for SAE J429 Grade 8 Steel Fasteners

Standard Torque Specifications Table for SAE J429
Grade 8 Steel Fasteners
Coarse Thread
Thread
Size
Lubricated Torque Dry Torque Clamp Load
N-m in-lb N-m in-lb N lb
1/4–20 12 107 16 143 12,677 2,850
5/16–18 25 220 34 305 20,906 4,700
N-m ft-lb N-m ft-lb
3/8–16 45 33 60 44 30,915 6,950
7/16–14 72 53 95 70 42,703 9,600
1/2–3 108 80 145 107 56,937 12,800
9/16–12 156 115 209 154 72,951 16,400
5/8–11 216 159 286 211 90,299 20,300
3/4–10 382 282 510 376 133,891 30,100
7/8–9 616 454 822 606 184,823 41,550
1–8 922 680 1,220 900 242,606 54,540
Fine Thread
Thread
Size
Lubricated Torque Dry Torque Clamp Load
N-m in-lb N-m in-lb N lb
1/4–28 14 120 18 163 14,457 3,250
5/16–24 28 245 37 325 23,130 5,200
N-m ft-lb N-m ft-lb
3/8–24 50 37 68 50 35,141 7,900
7/16–20 80 59 106 78 47,596 10,700
1/2–20 122 90 163 120 64,054 14,400
9/16–18 175 129 233 172 81,402 18,300
5/8–18 244 180 325 240 102,309 23,000
3/4–16 427 315 565 420 149,460 33,600
7/8–14 678 500 906 668 203,973 45,855
1–12 1,010 745 1349 995 265,425 59,670
4520P Page 2–9 Specifications: Torque Specifications
09.40003Rev 00