1/2 UNC / UNF Helical Go / NoGo Screw Plug Thread Gauge
Specification Size: 1/2" UNC / UNF Select from options: UNC 1/2-13 UNF 1/2-20 Wire Insert Thread Go / No-Go Screw Plug Thread Gauges for tapped holes of wire insert thread Part Number ES-12098Visit the JLS Supplies Ltd website for more information on 1/2 UNC / UNF Helical Go / NoGo Screw Plug Thread Gauge