IBM 6400 Series Maintenance Manual

347
Torque Table
D 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.
Fastener sizes are listed as Numbered Size – Threads Per Inch.
Torque Table
Fastener
Size
Into Alum.
or Brass
25,000 psi
ultimate
tensile
strength
Into
Weld/Press
Studs or
Nuts
Into Medium
Carbon Steel
Fasteners
105,000 psi
ultimate tensile
strength
Into Steel
60,000 psi
ultimate
tensile
strength
Carbon Steel Fasteners
(ANSI B18.6.3 – 1972)
2–56
4–40
6–32
8–32
10–24
10–32
1/4 – 20
25 + 2 in oz
62 + 4 in oz
122 + 7 in oz
1
1 + 1 in lb
20 + 1 in lb
15 + 1 in lb
40 + 3 in lb
36 + 2 in oz
75 + 5 in oz
150 + 10 in oz
18 + 1 in lb
25 + 1.5 in lb
29 + 2 in lb
62 + 4 in lb
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
—
—
—
—
Fastener Size
Torque for Routine Tightening of Threaded
Fasteners
4–40 UNC & 4–48 UNF 4 + 1 in lb
6–32 UNC & 6–40 UNF 1 1 + 1 in lb
8–32 UNC & 8–36 UNF 19 + 1 in lb
10–24 UNC & 10–32 UNF 25 + 1 in lb

IBM 6400 Series Specifications

General

Brand	IBM
Model	6400 Series
Category	Printer
Language	English