12.9级公制内六角杯头螺丝（螺栓）DIN912-12.9 、半牙杯头内六角螺栓、高强度半牙内六角螺栓 杯头内六角螺栓 六角螺栓

名称：内六角螺丝  12.9级公制内六角杯头螺丝（螺栓）、高强度半牙内六角螺栓
产品强度: 8.8级  10.9级    12.9级
材质：12.9级高强度
头型: 内六角标准
类型: 国标 GB
材质: 碳钢
表面处理:发黑

圆柱头内六角螺钉，也简称内六角螺栓，杯头螺丝，内六角螺钉，其叫法不一样，但所代表的意思是一样的。一般常用的内六角圆柱头螺钉的话还有4.8级，8.8级，10.9级，12.9级。也叫内六角螺丝，也叫内六角螺栓。其头部是内六角头的，也是圆柱头的。按材质分有不锈钢的和铁的。不锈钢的有不锈钢SUS202内六角圆柱头螺钉，这个是不锈钢普通材质的，有不锈钢SUS304内六角圆柱头螺钉，有不锈钢SUS316内六角圆柱头螺钉。铁的按内六角圆柱头螺钉强度等级分，有4.8级内六角圆柱头螺钉，有8.8级内六角圆柱头螺钉，有10.9级内六角圆柱头螺钉，有12.9级内六角圆柱头螺钉。8.8级-12.9级内六角圆柱头螺钉叫高强度高等级的内六角螺栓。

中文版
  深圳市精诚云峰科技有限公司位于深圳，是一家专业从事：精密紧固件连接件、车床、冲压、压铸、铸造、车冼加工件等五金制品的研发生产销售服务为一体的私营合伙企业，广泛服务于电子、玩具、数码、家电、灯饰、医疗器具、家私（家具）、机械设备、塑胶模具、车辆船舶、航空航天、水暖风电、箱包（手袋，服装，首饰配饰、饰品）业等。公司拥有外贸自营进出口权，连续多年被深圳市评为“重合同，守信用”企业。
  深圳市精诚云峰科技有限公司拥有多套国内、外先进的生产加工设备和一整套完整、科学的质量管理体系和，秉承以诚信为本，客户至上，服务至上，质量保证为基本原则以达到客户的满意为目的。精诚云峰科技有限公司的诚信、实力和产品质量获得业界的认可。欢迎各界朋友莅临精诚云峰科技有限公司参观、指导和业务洽谈。
  欢迎各位新老朋友来电来图来样咨询订购，我们将竭诚为您提供服务，详情请咨询：陈经理 18664986592 ，075533283280，yunfeng528@foxmail.com,  http://www.yunfeng86.com。

英文版
  Sincerely yunfeng technology co., LTD is located in shenzhen, shenzhen is a professional engaged in: precision fasteners, fittings, lathe, stamping, die casting, casting, car washing and other metal products processing, research and development production sales and service as one of the private partnership enterprises, widely services in electronics, toys, digital, home appliances, lighting, medical appliance, furniture (furniture), mechanical equipment, plastic mold, vehicles ships, aerospace, plumbing wind, cases, bags, handbags, clothing, jewelry accessories, jewelry) industry, etc.The company has the right to import and export of foreign trade, for many years in shenzhen as "contract, keep promise" enterprises.
  Shenzhen jingcheng yunfeng technology co., LTD. Has many sets of domestic and foreign advanced production and processing equipment and a complete set of scientific quality management system and, adhering to the integrity of this, customer first, service first, quality assurance as the basic principle to achieve customer satisfaction.Jingcheng yunfeng technology co., LTD. 's integrity, strength and product quality have been recognized by the industry.Welcome friends from all walks of life to visit jingcheng yunfeng technology co., LTD., guidance and business negotiations.
  Welcome all old and new friends to call us to consult and order pictures and samples, we will wholeheartedly provide service for you, please consult: manager Chen 18664986592, 075533283280, yunfeng528@foxmail.com, http://www.yunfeng86.com for details.