1Piece~10Pcs M3~M20 Brass Hydraulic Zerk Grease Nipple Fittings Lubricating Nipples 45° 90° and Straight Coarse and Fine Thread
https://www.vogueparade.com/shopping/EN/200282142/1/1005003701979028/1piece10pcs-m3m20-brass-hydraulic-zerk-grease-nipple-fittings-lubricating-nipples-45-90-and-straight-coarse-and-fine-thread//