For securing the Z-Clamp to thin wall tubing (less than 1/8"), use CRL's ZB0LT
Socket Head Cap Bolt and ZRNUT
Rivet-Nut. For installation, drill a 1/2" (12 mm) notch, insert the riv-nut, align the clamp with the bolt and drilled hole and start threading the bolt into the nut which results in compressing the nut.
1/2" (12 mm) notch is required if using the steel pin (included with the clamp) for additional glass support. Replacement gaskets are available by ordering CRL Cat. No. Z14RG.
Models for 1/4" to 1/2" (6 to 12 mm)
For Use With:
1-1/2" or 2" (38 or 50.8 mm) Diameter Round Tubing
Choice of Zinc Constructed or Stainless Steel. Stainless Steel or Powder Painted Zinc Clamps are recommended for more durability in exterior applications.
For 1/4" (6 mm), 5/16" (8 mm), and 3/8" (10 mm)
Thick Glass: 1/2" (12 mm) notch is required if using provided steel pin for glass support.
For 1/2" (12 mm) Thick Glass: 9/16" (14 mm) diameter hole required if using provided steel pin for glass support.
Rubber Gaskets and Steel Pin (for optional use) with Grommet.