1.Standard:DIN,ISO,JIS,AISI 2.Size:M3-M56 3.Material:Steel,SS,Brass 4.Grade:4.8,8,10.9,12.9 1) Different kinds of nuts available ,M3 to M30 to be mae by cold forming, M33 and up to be made by hot-forging.2) Different finish, such as bright, zinc plated, yellow zinc plated3) Can be made as low carbon steel and high tensile4) Mainly used for indoor and outdoor construction field5) Special anchors ...