STUD BOLTS ASTM A193 GRADE B7 ALLOY STEEL WITH TWO HEAVY HEXAGONAL WASHER FACED NUTS ASTM A194 GRADE 2H THREAD 8UN (UNS) TO BS 1580 TO BE MARKED AS REQUIRED BY STANDARD NOTE: FOR HIGH TEMPRATURE SERVICE 600 pcs.: 1-1/8 x 200mm 100 pcs. :1-1/4 x 250mm 100 pcs. :1-1/4 x 270mm 100 pcs.: 1-3/8 x 390mm 100 pcs.: 1-3/8 x 510mm 50 pcs.: 1-1/2 x 450mm 120 pcs.: 1-1/2 x 520mm 100 pcs.: 1-3/4 x 325mm 15 pcs. : 1-3/4 x 325mm 5 pcs.: 2 x 480mm