Wrap-Up Next Slim 5mm Steel Spacer 10mm Length, M3 Thread, 2pcs(0801-FD)

We have created a spacer with an outer diameter of 5mm and a screw diameter of 3mm that had not existed before, designed completely in-house. This achieves about a 40% weight reduction compared to the common outer diameter of 6mm spacers. Made from steel, it ensures strength while being ideal for situations where minimizing weight is necessary. Thanks to its high-precision design for a 5mm inner diameter bearing, it can also be used as a bearing shaft. It accommodates various applications such as idler gears, crank posts, and axle extensions.