M0537-4-S-26,METRIC ROUND SPACERBLACK OXIDE,
M0537-4-S-42,METRIC ROUND SPACERBLACK ZINC6MM
【RAF Electronic Hardware】M0537-4-SS,电路板硬件 - PCB 8mm, 4.3 ID, M4 ROUND METRIC SPACER
M0537-4-SS-20,METRIC ROUND SPACERPASSIVATE6MM
M0538-35-AL,METRIC ROUND SPACERPLAIN ALUMINU
M0538-35-B,METRIC ROUND SPACERPLAIN BRASS6M
M0538-35-B-12,METRIC ROUND SPACERCLEAR ZINCMET
M0538-35-N,METRIC ROUND SPACERNO FINISH - N
