Tag Archives: Grade 5

Grade 5 or A449 vs F1554 Grade 55

Can I substitute Grade 5 or A449 bolts for F1554 grade 55 bolts?

In most circumstances the answer is no. For Grade 5 the answer is never. Although, Grade 5 meets the minimum yield requirements of F1554gr55, the minimum tensile requirements exceed the maximum tensile requirements in all cases. A449 is similar in regards to meeting the minimum yield strength of F1554 Grade 55 across the board but... Read more