一．适用螺钉一．适用螺钉自攻螺钉按直径分2.9mm、3.5mm、4.2mm、4.8mm、5.5mm、6mm三种。二．常用材料二．常用材料PP：PP+T20/PP+T30/PP+T40ABS(ASA)ABS(ASA)+30PC/ABS(ASA)+50PCBMCPCPBT+GF30PA66+GF30三．三．形状及尺寸形状及尺寸A=（2~2.5）Bt=(0.5~0.75)T3-1PP+T20材质直径孔记号2.9mm3.5mm4.2mm4.8mm5.5mm6.0mm内径±公差（B）2.2+0.12.6+0.13.4+0.14.0+0.14.7+0.15.2+0.1有效部+1.5（C）G+1.5↑A6↑7↑8↑9↑10↑10↑DC0.5C1C1C1C1C1ER0.5R0.5R0.5R0.5R0.5R0.5FR0.5R0.5R0.5R0.5R0.5R0.5θ1010101010101.如不符合以上条件，则采用个案处理。2.螺丝采用自攻牙加尖尾。螺丝深度＞20mm，脱模角度20G三．三．形状及尺寸形状及尺寸A=（2~2.5）Bt=(0.5~0.75)T3-2PP+T30材质直径孔记号2.9mm3.5mm4.2mm4.8mm5.5mm6.0mm内径±公差（B）2.3+0.12.7+0.13.5+0.14.1+0.14.7+0.15.2+0.1有效部+1.5（C）G+1.5↑A6↑7↑8↑9↑10↑10↑DC0.5C1C1C1C1C1ER0.5R0.5R0.5R0.5R0.5R0.5FR0.5R0.5R0.5R0.5R0.5R0.5θ1010101010101.如不符合以上条件，则采用个案处理。2.螺丝采用自攻牙加尖尾。螺丝深度＞20mm，脱模角度20G三．三．形状及尺寸形状及尺寸A=（2~2.5）Bt=(0.5~0.75)T3-3PP+T40材质直径孔记号2.9mm3.5mm4.2mm4.8mm5.5mm6.0mm内径±公差（B）2.3+0.12.7+0.13.5+0.14.1+0.14.7+0.15.2+0.1有效部+1.5（C）G+1.5↑A6↑7↑8↑9↑10↑10↑DC0.5C1C1C1C1C1ER0.5R0.5R0.5R0.5R0.5R0.5FR0.5R0.5R0.5R0.5R0.5R0.5θ1010101010101.如不符合以上条件，则采用个案处理。2.螺丝采用自攻牙加尖尾。螺丝深度＞20mm，脱模角度20G三．三．形状及尺寸形状及尺寸A=（2~2.5）Bt=(0.5~0.75)T3-4ABS(ASA)材质直径孔记号2.9mm3.5mm4.2mm4.8mm5.5mm6.0mm内径±公差（B）2.3+0.12.7+0.13.5+0.14.1+0.14.8+0.15.2+0.1有效部+1.5（C）G+1.5↑A6↑7↑8↑9↑10↑10↑DC0.5C1C1C1C1C1ER0.5R0.5R0.5R0.5R0.5R0.5FR0.5R0.5R0.5R0.5R0.5R0.5θ1010101010101.如不符合以上条件，则采用个案处理。2.螺丝采用自攻牙加尖尾。螺丝深度＞20mm，脱模角度20G三．三．形状及尺寸形状及尺寸A=（2~2.5）Bt=(0.5~0.75)T3-5ABS(ASA)+30PC材质直径孔记号2.9mm3.5mm4.2mm4.8mm5.5mm6.0mm内径±公差（B）2.3+0.12.7+0.13.5+0.14.1+0.14.8+0.15.2+0.1有效部+1.5（C）G+1.5↑A6↑7↑8↑9↑10↑10↑DC0.5C1C1C1C1C1ER0.5R0.5R0.5R0.5R0.5R0.5FR0.5R0.5R0.5R0.5R0.5R0.5θ1010101010101.如不符合以上条件，则采用个案处理。2.螺丝采用自攻牙加尖尾。螺丝深度＞20mm，脱模角度20G三．三．形状及尺寸形状及尺寸A=（2~2.5）Bt=(0.5~0.75)T3-6ABS(ASA)+50PC材质直径孔记号2.9mm3.5mm4.2mm4.8mm5.5mm6.0mm内径±公差（B）2.4+0.12.8+0.13.6+0.14.2+0.14.8+0.15.2+0.1有效部+1.5（C）G+1.5↑A6↑7↑8↑9↑10↑10↑DC0.5C1C1C1C1C1ER0.5R0.5R0.5R0.5R0.5R0.5FR0.5R0.5R0.5R0.5R0.5R0.5θ1010101010101.如不符合以上条件，则采用个案处理。2.螺丝采用自攻牙加尖尾。螺丝深度＞20mm，脱模角度20G三．三．形状及尺寸形状及尺寸A=（2~2.5）Bt=(0.5~0.75)T3-7BMC材质采用刀口螺钉（F型）直径孔记号2.9mm3.5mm4.2mm4.8mm内径±公差（B）2.5+0.13+0.13.7+0.14.3+0.1有效部+1.5（C）G+1.5↑A7↑8↑10↑10↑DC0.5C1C1C1ER0.5R0.5R0.5R0.5FR0.5R0.5R0.5R0.5θ101010101.如不符合以上条件，则采用个案处理。2.螺丝采用自攻牙加尖尾。螺丝深度＞20mm，脱模角度20G三．三．形状及尺寸形状及尺寸A=（2~2.5）Bt=(0.5~0.75)T3-8PC材质直径孔记号2.9mm3.5mm4.2mm4.8mm5.5mm6.0mm内径±公差（B）2.3+0.12.9+0.13.7+0.14.2+0.14.9+0.15.4+0.1有效部+1.5（C）G+1.5↑A6↑7↑8↑9↑10↑10↑DC0.5C1C1C1C1C1ER0.5R0.5R0.5R0.5R0.5R0.5FR0.5R0.5R0.5R0.5R0.5R0.5θ1010101010101.如不符合以上条件，则采用个案处理。2.螺丝采用自攻牙加尖尾。螺丝深度＞20mm，脱模角度20G三．三．形状及尺寸形状及尺寸A=（2~2.5）Bt=(0.5~0.75)T3-9PBT+30GF材质直径孔记号2.9mm3.5mm4.2mm4.8mm5.5mm6.0mm内径±公差（B）2.3+0.12.8+0.13.6+0.14.2+0.14.9+0.15.3+0.1有效部+1.5（C）G+1.5↑A6↑7...
