1. Metric Threads (ISO) • Metric (M) • Metric Fine (MF) • Metric Coarse • MJ (Metric with radius root) • S (Miniature Metric) • ST (Sheet Metal Thread) • MT (Metric Tapered Pipe) 2. Unified Threads (ANSI/ASME) • UNC (Unified Coarse) • UNF (Unified Fine) • UNEF (Unified Extra Fine) • UNS (Unified Special) • UNJF (Unified Fine with radius root) • UNR (Rounded root Unified) • UNM (Unified Miniature) 3. Pipe Threads • BSP (British Standard Pipe) • BSPT (British Standard Pipe Tapered) • NPT (National

6-Piece NPT Pipe Tap Set, 1", 3/4", 1/2", 3/8", 1/4", 1/8" Taps Threading Tool, Precision Carbon Steel Tap Set Metric and Standard for Clean and Re-Thread Damaged or Jam Pipe Threads in Storage Case