SS Series Light Grey 0.75inch CPVC Round Plastic Spacer for #4 Screw
圆形垫片 无螺纹 #8 PVC 0.375"（9.53mm）3/8" 灰色
得捷:
ROUND SPACER #8 PVC 3/8"
Allied Electronics:
Spacer; PVC, RIGID RMS-11; #8; 3/8 in.; 0.175 +0.007 in.; 1/4 +0.007 in.
富昌:
SS Series Light Grey .750 inch CPVC Round Plastic Spacer for #4 Screw