Page 10 Speed Level Series - Service & Parts Manual
January 2019Section 4 - General Information
Bolt Torque Specification - American Standard
Fasteners
Use the following values to apply torque unless a specific torque value is called out for the part being
used
American Standard Cap Screws
SAE Grade 5 8
Cap Screw
Size (inches)
Torque Torque
Ft. Lbs Nm Ft. Lbs Nm
Min Max Min Max Min Max Min Max
1/4 - 20 6.25 7.25 8.5 10 8.25 9.5 11 13
1/4 - 28 8 9 11 12 10.5 12 14 16
5/16 - 18 14 15 19 20 18.5 20 25 27
5/16 - 24 17.5 19 12 26 23 25 31 34
3/8 - 16 26 28 35 38 35 37 47.5 50
3/8 - 24 31 34 42 46 41 45 55.5 61
7/16- 14 41 45 55.5 61 55 60 74.5 81
7/16 - 20 51 55 69 74.5 68 75 92 102
1/2 - 13 65 72 88 97.5 86 96 116 130
1/2 - 20 76 84 103 114 102 112 138 152
9/16 - 12 95 105 129 142 127 140 172 190
9/16 - 18 111 123 150 167 148 164 200 222
5/8 - 11 126 139 171 188 168 185 228 251
5/8 - 18 152 168 206 228 203 224
275 304
3/4 - 10 238 262 322 255 318 350 431 474
3/4 - 16 274 302 371 409 365 402 495 544
7/8 - 9 350 386 474 523 466 515 631 698
7/8 - 14 407 448 551 607 543 597 736 809
1- 8 537 592 728 802 716 790 970 1070
1 - 14 670 740 908 1003 894 987 1211 1137
Torque values apply to fasteners as received from the supplier, dry or when lubricated with
normal engine oil.
If special graphite grease, molydisulphide grease, or other extreme pressure lubricants are
used, these torque values do not apply.
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