Studbolt DIN 976/B M30x3.50 x 420 mm SB572 UNS N06002 20 pcs. Heavy hex. nut DIN 934 H=D M30x3.50 SB572 UNS N06002 40 pcs. Certificate EN 10204-3.1 + base material certificate. Delivery time required : aprox. 21 days.