YMW N-RZ M5 X 0.8 Roll Form Tap 2-2-1/2 Lead Manufacture YMW Mfg Part Number 389518 Size (Metric) Thread Limit D9 Number of Lobe Grooves 4 Chamfered Bottom Lead 2 to 2-1/2 Finish/Coating Oxide Material Vanadium High Speed Steel Oversize (Yes/No) No Length of Thread .630 Overall Length (Inch) 2.756 Thread Standard UNF