Button Head Hex Socket Screws (CH-SCREW-061) Chuanghe Fastener Co., Ltd. Base Info Model NO.:CH-SCREW-061Trademark:ChuangHeSpecification:DIN, JIS ISO, BS, ANSI...etcOrigin:Dongguan, ChinaHS Code:7318 Description Pre:Slotted Head Half Thread Hand Tighten Screw Next:Plain Washer (YC-SM021)