M0539-4-AL-24,METRIC ROUND SPACERBLACK ANODIZE
M0539-4-AL-7,METRIC ROUND SPACERCLEAR IRIDITE
M0539-4-B,METRIC ROUND SPACERPLAIN BRASS6M
M0539-4-B-12,METRIC ROUND SPACERCLEAR ZINCMET
【RAF Electronic Hardware】M0539-4-N,电路板硬件 - PCB 10mm, 4.3 ID, M4 ROUND METRIC SPACER
M0539-4-S,METRIC ROUND SPACERPLAIN STEEL6M
M0539-4-S-12,METRIC ROUND SPACERCLEAR ZINC6MM
M0539-4-S-5,METRIC ROUND SPACERNICKEL 6MM RD