Asme B18.5.2 Metric Round Head Short Square Neck Carriage Bolts (CH-bolt-011) Chuanghe Fastener Co., Ltd. Base Info Model NO.:CH-bolt-011Trademark:chuangheSpecification:M6-M20Origin:DongguanHS Code:7318 Description Pre:Low Carbon Steel Zinc Plated DIN1587 Hex Domed Cap Nut (CH-NUT-021) Next:DIN95 DIN96 DIN97 Slotted Raised Countersunk/Round/Countersunk Head Wood Screws (CH-WS-001)