Specifications

Chapter 4 - Maintenance
42S315F 4-9
NOTE
All galvanized fasteners, nominal size 1/2-inch and larger, are
high-strength structural fasteners meeting the American
Society for Testing and Materials (ASTM) A325 specification.
If for some reason one has to be replaced, it is imperative that
one be obtained that meets the ASTM A325 specification. If
unable to locate, contact the factory for either a suggested
source or a replacement.
CAUTION
All structural joints have been designed using ASTM A325
high-strength structural fasteners. If a fastener is substituted
that does not meet this specification, failure could occur.
If corrosion of a fastener becomes evident, it should be corrected immediately
as follows:
1. Determine extent of corrosion. If base material of fastener is
corroded, replace with identical size and type. Refer to drawings
parts list for fastener size and type.
2. Remove any corrosion from the fastener (if reused) and surrounding
area with a wire brush.
3. Clean parts with toluene or naphtha solvent.
4. After fastener is tightened and paint is dry enough to be recoated,
spray fastener head, washers and nut with white paint (or
appropriate top coat).
In the case of extensive corrosion of a fastener (i.e., the base material is
corroded), replace with identical size and type (SAE Grade 5 steel). Refer to
drawing parts list for fastener size and type.