Heyco Liquid Tight Cord Grips Torque Recommendations ChartAluminum Cord Grips
Assembly Torque for Heyco-Tite Aluminum Liquid Tight Cordgrips NPT Thread
Thread Size Sealing Nut Torque
in. lbs
NPT 1/4   175
NPT 3/8   200
NPT 1/2   300
NPT 3/4   500
NPT 1   700
NPT 1-1/4 1000
NPT 1-1/2 1200
NPT 2 1600
NPT 2-1/2 1600
NPT 3 1600
Locknuts: Hand tighten then tighten an additional 1/4 turn.