Type 8 Phosphate Coated Hardware - Doosan DX140R Shop Manual

TYPE 8 PHOSPHATE COATED
HARDWARE
This chart provides tightening torque for general purpose
applications using original equipment standard hardware as
listed in the Parts Manual for the machine involved. DO NOT
SUBSTITUTE. In most cases, original equipment standard
hardware is defined as Type 8, coarse thread bolts and nuts and
thru hardened flat washers (Rockwell "C" 38 - 45), all phosphate
coated and assembled without supplemental lubrication (as
received) condition.
The torques shown below also apply to the following:
1. Phosphate coated bolts used in tapped holes in steel or
gray iron.
2. Phosphate coated bolts used with phosphate coated
prevailing torque nuts (nuts with distorted threads or plastic
inserts).
3. Phosphate coated bolts used with copper plated weld nuts.
Markings on bolt heads or nuts indicate material grade ONLY
and are NOT to be used to determine required torque.
Nominal Thread Diameter
Standard Torques
1/4"
5/16"
3/8"
7/16"
1/2"
9/16"
5/8"
3/4"
7/8"
1"
1 - 1/8"
1 - 1/4"
1 - 3/8"
1 - 1/2"
1 - 3/4"
2
Standard Torque ±10%
Kilogram Meter
(kg•m)
1.1
2.2
3.9
6.2
9.7
13.8
19.4
33.2
53.9
80.2
113.4
160.4
210.2
279.4
347.1
522.8
Foot Pounds
(ft lb)
8
16
28
45
70
100
140
240
390
580
820
1160
1520
2020
2510
3780
SP000813
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