ASTM A307 Grade A Bolts, Stud Bolts, Threaded Rods
ASTM A307 Grade A Carbon Steel Bolting with minimum tensile of 60 ksi.
ASTM A307 Grade A is grade specification in carbon steel bolting for use in general purpose application. This grade covers hex headed bolts, stud bolts, threaded rods or any other bolting having a minimum tensile strength of 60 ksi.
ASTM A307 Grade A Chemical Composition
ASTM A307 Grade A Mechanical Properties
||Yield, min, ksi
||Elongation, min, %
Compatible Nuts specification for ASTM A307 Grade A Bolting
|ASTM A307 Grade A
|1/4" to 1-1/2"
||1-5/8" to 4"
|ASTM A563 A Hex
||ASTM A563A Heavy Hex
ASTM A307 Grade A Marking Requirement
||Grade A Bolts are marked or stamped with "307A" along with optional manufacturer's Initial or logo.