Can Portland Bolt manufacture A325 countersunk bolts?
The short answer is, yes! In 2015, ASTM created F3125 which is a new, all-inclusive specification for structural bolts that consolidated and replaced the following six stand-alone ASTM standards: A325, A325M, A490, A490M, F1852 and F2280. Under the new F3125 specification, A325 fasteners can be made in head styles other than heavy hex as long the as the bolts are stamped with “A325S”. The “S” on the end of the grade marking denotes “special”. Under the new F3125 specification, Portland Bolt is able to manufacture A325 bolts in countersunk form and many other head styles. F3125 Grade A490 countersunk bolts can also be manufactured.