4. astm a394 mechanical properties and head marking
1. Tension
Stength
Single shear
strength through
threads
Single shear
strength through
body
Hardness
ksi ksi ksi Rockwell HRB
TypeO 74 55.2 45.88 80-100
Type1 120 74.4 74.4 25-34
Type3 120 74.4 74.4 25-34
ASTM A394 Mechanical Properties and Head Marking
ASTM A394
Standard
for Bolt
Grade Head Marking
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