ASTM A193 B7 Thread Rod Ningbo Zhenghai Yongding Fastener Co., Ltd Base Info Material：High Strength SteelGrade：B7Type：Lost-HeadConnection：Heavy RodHead Style：Lost-HeadFinish：BlackTrademark：YDSpecification：ANSIOrigin：Ningbo, Zhejiang, China Description Pre：Incoloy 925 Stud Bolt Nut / Uns N09925 Next：SGS Approved Stainless Steel 304 316 Hex Bolt Full Thread/Half Thread/DIN933/DIN931
