CRL 5/16"-18 Rivet Nut - 10 Pack For Securing Z-Series Clamps to Tubing Using ZB0LT Cap Bolt Zinc Plated Steel For Use on Thin Wall Tubing 1/8" (3.2 mm) Thick and Less Accepts 5/16"-18 Thread (Cat. No. ZB0LT) Installs with Cat. No. 34604 Heavy-Duty Thread Setter Tool