... , Europe,South Korea,Southeast Asia ,etc.Professional production and processing: nut, nuts, pin shaft, stud bolt,screws, bolts, non-standard ... bolt, non-standard nut, non-standard screws, egg neck bolt, fishbolt, countersunk head bolt. Expansion bolt, expansion screw.etc ... the length is from 60MM-1400MM.2. Metric and ANSI round head oval neck bolt (fish bolt) with mechanical property of ...