Rotabolt® Screws and stud bolts 42CrMo5-6 M56x3x540, 22 pcs. M64x3x660, 52 pcs. DIN 976 B A193 B7/A194 2H 2st-2n M20x255, 228 pcs. DIN 976 B / DIN 2510 NF A193 B7 M24x250, 208 pcs. M24x320, 208 pcs. M27x340, 512 pcs. DIN 976 B A193 B7/A194 2H M27x470, 248 pcs. Certificate 3.1 PED Impact test -29 st.C min 27J