... :JIS,ANSI,DIN,BSW,ISO,GB Specifications1. Item# JL-SCR-010 screws and nuts2. Finish: natual anodizingMaterialBrass, Carton steel, Stainless steel ... .2. by head typesFlat, Oval, Binding, Pan, Round, Truss, Button, PF, Pan washer, Cheese, Countersunk, Fillister, hexagon, Hexagon washer head, Hexagon ... productswww.jielimetal.com.cn ISO 4032 Hex Nut JL-SCR-010