Bolt Grade Markings Chart; Parts - Precor Experience Series Service Manual

Bolt grade markings are used to categorize bolts according to the bolt material, man-
ufacturing process, and mechanical properties. The grade of the bolt is stamped on the
head of the bolt.
US SAE bolts: The bolt grade markings are determined by the number of the lines stamped
on the head of the bolt. The number of lines is always two less than the grade of the bolt.
Count the lines, add two, and you can determine the grade of the bolt.
Metric bolts: On metric bolts, the bolt grade is identified by a bolt grade number stamped
on the head of the bolt.
CAUTION: Always replace bolts with the same grade bolt. If you don't know the
grade of the replacement bolt –

Bolt Grade Markings Chart

Example bolt grades used on Precor equipment (may not represent all bolt grades). Always
match the replacement bolt grade marking to the removed bolt grade marking.

Parts

IMPORTANT: Always purchase OEM replacement parts and hardware from Pre-
cor. If you use parts not approved by Precor, you could void the Precor Limited War-
ranty. Use of parts not approved by Precor may cause injury.
There is a copy of the parts Exploded View Diagram and Parts Identification List included in
the Parts chapter (see Parts)that you can use as a quick reference. It is recommended that
you go to the servicer partners
Contact Precor Customer Support at support@precor.com or 800.786.8404 with
any questions.
DO NOT USE THE
Precor Connect (or Precor
2 General Information
BOLT.
Connection) website to view
Parts
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