hexagonal head bolt: 1Materials:Carbon steel 2Size:M27*120,M30*100,130 3Finish: ... ,M30*100,130 3Standard: AS, ASTM, DIN, JIS, GB, GOST, UNI, etc. 4Grade: 4.85Surface: Black, (Darconmet, HDG, Zinc plated, etc ... Welcome your visit! Fasteners M27 M30 Gr4.8 hexagonal head bolt