Rotary Shouldered Connections

Rotary Shouldered Connections

Northern Gauge manufactures API 7-2 REG, NC, I.F., F.H, PAC, HEF, MT/AMT, X.H, H90, AOH, SLH90, Wilson Flush WF,  plug and ring gages All working gages are manufactured in full compliance to API 7-2 and fully traceable to API reference masters.