I have arranged to import 2000 of these encoders: http://en.soundwell.cn/newEbiz1/EbizPortalFG/portal/html/ProductInfoExhibit.html?ProductInfoExhibit_ProductID=c373e91a7c13d8c38f6acbc483ecd9ba&ProductInfoExhibit_isRefreshParent=false and distribute to the MIDIbox community in lots of 100. The specific part number is EC162102E1B-HA1-006, so according to the drawing, the "L" dimension is 20mm, "a" is 12mm, "W" is 7mm, "D" is 8.9mm (takes M9 nut), the shaft is "FB-TYPE" (standard D-shaft t