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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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