Yes.
a307
181 miles taking this route:Take M4(E) CARDIFF, from Swansea, across to A205 CIRCULAR ROAD at J2, in West London, ENGLAND. Take the exit and follow signs to A205 S. CIRCULAR (to RICHMOND).Take A205 S. CIRCULAR to A307 RICHMOND at KEW GREEN, and bear right onto A307.Take A307 to Richmond.
ASTM A307 Grade B
Bolts are typically classified into several grades based on their strength and material properties. Common grading systems include the American Society for Testing and Materials (ASTM) grades, such as ASTM A307, A325, and A490, as well as the SAE grades, like Grade 2, Grade 5, and Grade 8. Additionally, metric bolts are graded according to ISO standards, such as 8.8, 10.9, and 12.9. Each grade indicates the bolt's tensile strength and suitability for different applications.
The raw steel specification A36, has a maximum tensile strength of 80 ksi. This is the same maximum strength as ASTM standards like A307 grade C or F1554 grade 36. I'm not familiar with any other specifications that would use A36 and have a higher maximum strength. The A36 steel would be out of tolerance if it exceeds a 80 ksi tensile. Being out of tolerance in this way could indicate other properties are also out of tolerance in a less favorable way. The steel would be less ductile, for instance, and impact properties might be reduced.