H Torque Table - IBM Infoprint 6500-v05 Maintenance Manual

H
Torque Table
The table below establishes the torque requirements for routine installation of threaded fasteners. These requirements apply to
fasteners made of steel, at a minimum engagement of 3.5 threads, including chamfer and countersink. For the most accurate
torquing, apply anti-seize compound to fastener threads before you torque the fastener.
Fastener sizes are listed as Numbered Size - Threads Per Inch . (For example, 2-56 means "a No. 2 screw with 56 threads per
inch.")
Fastener Size
2-56
4-40
6-32
8-32
10-24
10-32
1/4 - 20
Carbon Steel Fasteners (ANSI B18.6.3 - 1972)
Into Alum. or Brass Into Steel
25,000 psi ultimate 60,000 psi ultimate
tensile strength tensile strength
25 ± 2 in oz 36 ± 2 in oz
62 ± 4 in oz 75 ± 5 in oz
122 ± 7 in oz 150 ± 10 in oz
11 ± in lb 18 ± 1 in lb
20 ± 1 in lb 25 ± 1.5 in lb
15 ± 1 in lb 29 ± 2 in lb
40 ± 3 in lb 62 ± 4 in lb
Into Medium
Carbon Steel
Into Weld/Press Fasteners
Studs or Nuts 100,000 psi
ultimate tensile
strength
30 ± 2 in oz *
70 ± 5 in oz *
135 ± 10 in oz *
18 ± 1 in lb *
21 ± 1 in lb *
29 ± 1 in lb *
62 ± 4 in lb 105 ± 5 in lb
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