Hardware
TORQUE GUIDELINES FOR STANDARD HARDWARE
Note: Torque values specified are for clean dry threads.
Note: Torque value used should be for lowest grade of hardware used. If a grade 2 nut is used on a grade 8
bolt, use grade 2 torque value.
Hardware Identification
Hex Head Bolts and Screws
The grade of SAE bolts and screws are identified by markings on the head
as illustrated to the right.
The grade of a metric hex head bolt or screw is cast directly on the head.
Below is an example of a 10.9. The location and style of the text will vary.
Other types of bolts and screws
Truss Head, Grade 2
Page 86
SAE Grade 2
SAE Grade 8
Carriage Bolt, Grade 2
B5-440-36 / B5-440-48
SAE Grade 5
SAE Grade 9
MB-440-01