Shear Stud 圆柱头焊钉 10.9S Tension Control Bolt 10.9S扭剪螺栓 10.9S Structural Hex Bolt 10.9S结构的六角螺栓 Welding Stud 焊接螺柱 Flat Head Self-drilling Screw 平头自钻螺钉 Wood Screw 木螺丝 Insert Nut 铆母 Self-drilling Screw 自钻螺丝 Double-head Bolt 双头螺栓 Anchor Bolt 地脚螺栓 Hex Bolt And Nut 六角螺栓和螺母 Self-drilling Screw 自钻孔螺钉