JIS螺丝头部标准

1、螺丝头部标准 盘头螺钉（代码：P） JIS B1111 Pan head screws unit：mm螺纹公称直径d螺距P十字槽槽号dkKrf1rf2mq（1）rdaE（2）F（2）G基本尺寸偏差基本尺寸偏差约约参考maxminminmaxmaxmaxmaxM20.413.5-0.41.3±0.14.50.62.21.010.60.12.60.150.12°(M2.2)0.4541.550.72.41.210.80.12.80.20.15M2.50.454.51.760.82.61.4210.13.10.20.15M30.525.5-0.52±0.15713.61

2、.430.860.13.60.250.2(M3.5)0.662.381.13.91.731.150.14.10.250.2M40.772.691.34.22.031.450.24.70.30.2(M4.5)0.758-0.62.9111.54.62.431.840.25.20.350.25M50.893.3121.64.92.732.140.25.70.350.25M61310.5-0.73.9±0.2141.96.32.862.260.256.80.40.3M81.2514-0.85.2182.67.84.363.730.49.20.50.4 备注：1、（1）q表示十字槽量规插入深

3、度； 2、（2）E和F为相对轴心的偏移； 3、括号内公称直径尽量不选用。 ZHONGSHAN OUTSCAP INDUSTRIAL &TRADING CO.,LTD 沉头螺钉（代码：K） JIS B1111Countersunk head screws unit：螺纹公称直径d螺距P十字槽槽号dkKcmq（1）rE（2）F（2）G基本尺寸偏差基本尺寸偏差约约maxmin约maxmaxmaxM20.414-0.41.20 -0.20.22.21.010.650.20.150.12°(M2.2)0.454.41.30.22.41.210.850.220.20.15M2.50.45

4、51.450.22.61.421.050.250.20.15M30.526-0.51.750 -0.30.253.61.430.910.30.250.2(M3.5)0.6720.254.11.931.40.350.250.2M40.782.30.34.52.831.790.40.30.2(M4.5)0.759-0.62.550.34.92.732.190.450.350.25M50.8102.80.35.12.932.380.50.350.25M61312-0.73.40 -0.40.46.73.262.70.60.40.3M81.2516-0.84.40.48.44.964.360.80.5

5、0.4 备注：1、（1）q表示十字槽量规插入深度； 2、（2）E和F为相对轴心的偏移； 3、括号内公称直径尽量不选用。 ZHONGSHAN OUTSCAP INDUSTRIAL &TRADING CO.,LTD半沉头螺钉（代码：O）JIS B1111 raised csk head wood screws unit：mm螺纹公称直径d螺距P十字槽槽号dkKcfk+fmq（1）rE（2）F（2）G基本尺寸偏差基本尺寸偏差约约基本尺寸偏差参考基本尺寸偏差约maxmaxmaxM20.4140 -0.41.20 -0.20.20.41.60 -0.42.41.210.850.20.150.12

6、°(M2.2)0.454.41.30.20.51.82.71.521.140.220.20.15M2.50.4551.450.20.5522.91.721.340.250.20.15M30.526-0.51.750 -0.30.250.72.450 -0.53.81.631.110.30.250.2(M3.5)0.6720.250.82.84.32.131.60.350.250.2M40.782.30.30.93.24.72.531.990.40.30.2(M4.5)0.759-0.62.550.313.555.12.932.380.450.350.25M50.8102.80.31.

7、245.33.132.580.50.350.25M61312-0.73.40 -0.40.41.44.80 -0.66.93.462.90.60.40.3M81.2516-0.84.40.41.86.28.65.164.560.80.50.4 备注：1、（1）q表示十字槽量规插入深度； 2、（2）E和F为相对轴心的偏移； 3、括号内公称直径尽量不选用。 ZHONGSHAN OUTSCAP INDUSTRIAL &TRADING CO.,LTD扁圆头螺钉（代码：T） JIS B1111 Oval head screw unit：mm螺纹公称直径d螺距 P十字槽槽号dkKrfmq（1）rd

8、aE（2）F（2）G基本尺寸偏差基本尺寸偏差约参考maxminminmaxmaxmaxmaxM20.414.5-0.41.2±0.132.21.010.650.12.60.150.12°(M2.2)0.4551.33.22.31.110.750.12.80.20.15M2.50.455.71.53.72.51.320.950.13.10.20.15M30.526.9-0.51.9±0.154.62.91.721.340.13.60.250.2(M3.5)0.68.12.25.441.831.30.14.10.250.2M40.79.42.56.14.32.131.

9、60.24.70.30.2(M4.5)0.7510.6-0.62.86.94.72.531.990.25.20.350.25M50.811.83.17.752.832.290.25.70.350.25M61314-0.73.7±0.29.16.32.862.310.256.80.40.3M81.2517.8-0.84.811.77.84.363.780.49.20.50.4备注：1、（1）q表示十字槽量规插入深度； 2、（2）E和F为相对轴心的偏移； 3、括号内公称直径尽量不选用。 球面扁圆头螺钉（代码：B） JIS B1111ZHONGSHAN OUTSCAP INDUSTRIAL

10、 &TRADING CO.,LTD Spherical oval head screws unit：mm螺纹公称直径d螺距P十字槽槽号dkKfk+fmq(11)rdaE12F12G基本尺寸偏差约基本尺寸偏差基本尺寸偏差参考maxminminmaxmaxmaxmaxM20.414.3-0.40.850.35±0.11.2±0.152.21.010.650.12.60.150.12°(M2.2)0.54.70.90.41.32.31.110.750.12.80.20.15M2.50.55.310.51.52.51.320.950.13.10.20.15M30.

11、526.3-0.51.30.6±0.151.9±0.23.71.531.010.13.60.250.2(M3.5)0.67.31.50.72.241.831.30.14.10.250.2M40.78.31.70.82.54.32.131.60.24.70.30.2(M4.5)0.89.3-0.61.90.92.84.72.531.990.25.20.350.25M50.810.32.113.152.832.290.25.70.350.25M61312.4-0.72.41.3±0.23.7±0.36.32.862.310.256.80.40.3M81.31

12、6.4-0.83.11.74.87.84.363.780.49.20.50.4备注：1、（1）q表示十字槽量规插入深度 2、（2）E和F为相对轴心的偏移 3、括号内公称直径尽量不选用。圆头螺钉（代码：V） JIS B1111 ZHONGSHAN OUTSCAP INDUSTRIAL &TRADING CO.,LTDRound head screw unit：mm螺纹公称直径d螺距P十字槽槽号dkKrf1rf2mq（11）rdaE12F12G基本尺寸偏差基本尺寸偏差约约参考MaxMinMinMaxMaxMaxMaxM20.413.5-0.41.3±0.12.11.22.10.910.50.12.60.150.12°(M2.2)0.4541.52.41.32.31.110.790.12.80.20.15M2.50.454.51.72.71.52.51.320.90.13.10.20.15M30.525.5-0.52±0.153.31.83.51.330.760.13.60.250.2(M3.5)0.662.33.623.81.631.060.14.10.250.2M40.772.64.22.34.11.931.350.24.70.30.2(M4.5)0.758-0.634.82.74.52.331.74