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20
BOLT TYPE IDENTIFICATION CHART
IH
S.A.E.
Type
Grade
1
1 or 2
5
5
8
8
Issued July 2020
General Information
POWERTRAK
General Information
No radial lines.
Low or medium carbon steel not heat treated.
NOT USED, replace with same grade bolt.
Three radial lines.
Quenched and tempered medium carbon steel.
Six radial lines.
Quenched and tempered special carbon or alloy steel
®
COMMERCIAL PLUS
Description
Bolt Head
Marking**
Copyright 2020, Heil Environmental
Printed in the U.S.A.
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