ESTABLISHED IN 1991, WON THE IMP & EXP LICENCE IN 1997, ISO9002 CERTIFICATED IN 2000,NINGBO ZHONGLIAN FASTENER MANUFACTURE CO., LTD. IS A LEAD MANUFACTURER OF VARIOUS FASTENERS IN CHINA.IT HAS THE CAPACITY OF 10,000 MTS PER YEAR.WE CAN PRODUCE THE FASTENERS PRODUCTS ACCORDING TO DIN,JIS,BS,ANSI/ASME,UNI,AS,ISO ETC.STRENGTH GRADE: 4.8/6.8/8.8/10.9/12.9 ETC.LENGTH:10mm/1000mm,Diameter:M6~M76.FOR MORE INFORMATION,PLS FELL FREE TO CHECK OUR HOMEPAGE:  http://www.sinofastener.com   BEST REGARDS JIE ZHOU EXPORT MANAGER