PREVOST LE MIRAGE XLII BUS SHELLS User Manual

Section 00: GENERAL INFORMATION
8 PA1553
5. FASTENER STRENGTH IDENTIFICATION
Most commonly used metric fastener strength
property classes are 9.8 and 10.9 with the class
identification embossed on the head of each
bolt. Customary (inch) strength classes range
from grade 2 to 8 with radial line identification
embossed on each bolt head actual grade (i.e.,
a grade 7 bolt will have 5 embossed radial lines
on the bolt head). Some metric nuts will be
marked with single digit strength identification
numbers on the nut face. Fig. 11 shows the
different strength markings. When replacing
metric fasteners, be careful to use fasteners of
the same or greater strength than the original
fasteners (the same number marking or higher).
It is also important to select replacement
fasteners of the correct size. Correct
replacement fasteners are available through the
parts division. Some metric fasteners available
in after-market parts sources were designed to
metric standards of countries other the United
States and may be of a lower strength, may not
have the numbered head marking system, and
may be of a different thread pitch.
FIGURE 10 : THREAD NOTATION 00002
FIGURE 11: BOLT STRENGTH MARKINGS 00003
The metric fasteners used on the coach are
designed to new standards and may not yet be
manufactured by some non-domestic fastener
suppliers. In general, except for special
applications, the common sizes and pitches are:
o M 8 X 1.25;
o M 10 X 1.5;
o M 12 X 1.75;
o M 14 X 2;

PREVOST LE MIRAGE XLII BUS SHELLS Specifications

General

Brand	PREVOST
Model	LE MIRAGE XLII BUS SHELLS
Category	Buses
Language	English