Stud bolts with nuts Mat spec, stud bolt(s) ASTM A320 GRADE L7M Mat spec, nut(s) ASTM A194 GRADE 7M Coating CENTRIFUGED HOT DIP GALVANISED Design spec, stud bolt BS 729 Type of thread UNC Number, nuts per stud bolt 2 Length 85 mm Size 5/8 in Mat spec, pipe 0103X INCOLOY 825 Pressure designation, pipe CL 150 SB2N = Stud bolt with two nuts Certification TYPE 3.1 AS PER EN 10204:2004