Self Retaining PVC Screw Spacer; 20mm Length; 0.25 OD; 0.142 ID; #4 Screw Size; Grey
圆形垫片 无螺纹 #4 PVC 0.787"（20.00mm） 灰色
得捷:
ROUND SPACER #4 PVC 20MM
艾睿:
Spacer Round 3.6mm-ID 6.4mm-OD 20mm-LG Polyvinyl Chloride
Allied Electronics:
Self Retaining PVC Screw Spacer; 20mm Length; 0.25 OD; 0.142 ID; #4 Screw Size; Grey