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SAE - Grade 5 Bolt

SAE - Grade 5 Bolt

SAE - Grade 5 Bolt

(OP)
What's the difference between SAE-Grade-5 ASTM A449 and ASTM A325?

Both are Medium Carbon, Quenched and Tempered; Proof Load = 85,000 psi; Tensile Strength = 120,000 psi.

Is Grade 5 an acceptable substitution?

Thank you!

RE: SAE - Grade 5 Bolt

(OP)
CANPRO... Thank you for your reply.

After speaking with Portland, the major difference between the two is that the A325 has a 1/8" greater heavy hex head which is critical for the tensile application that i was inquiring about.

Thanks again!

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