沉头铆螺母，不锈钢沉头拉铆沉头拉铆螺母标准:GB/T17880.2铆接于带有倒角的薄板孔内，安装好后其头平面与板面持平。可供应材质：钢，铝，铜，及不锈钢生产范围：附下图注：沉头拉铆螺母（大沉头）亦提供柱纹型式。SIZEDeh(ref.)HOLEDdd-0.03-0.20dK+0.30-0.30k+0.20-0.20L+0.30-0.30CM3(R)CM3(R)X10.5M31.6-33~44557.81.59.510.5CM4(R)CM4(R)X13M41.6-3.53.5~56.06691.511.013.0CM5(R)CM5(R)X15M51.6-3.53.5~58.077101.514.015.0CM6(R)CM6(R)X17M61.6-44~69.099121.515.017.0CM8(R)CM8(R)X19M81.6-4.54.5~610.51111141.516.519CM10(R)CM10(R)X20.5M101.6-4.54.5~611.51313161.519.020.5CM12(R)M121.6-514.51515181.522.5)