内六角螺栓与孔的配合、沉孔尺寸、各国标准(综合篇)

螺栓规格低径头部直径头部厚度沉孔直径沉孔深度通孔直径螺母厚度对边宽M2 1.6 3.82 4.53 2.5 1.64 M3 2.4 5.536 3.5 3.5 2.4 5.5 M4 3.25747.5 4.5 4.5 3.27 M5 4.28.559 5.5 5.5 4.78 M6510611 6.5 6.5 5.210 M8 6.8138138.58.5 6.813 M108.516101610.510.58.416 M1210.318121912.512.51118 M141221142616.5171321 M161424161524 M201730201830 M242136242236 M3026.545302646 M3654363155