Kuryakyn  1.5" Magnum Quick Clamps (Pair) 

All clamps have a 1/2" hole for clamp bolt/clevis mount, stainless steel construction
 for superior strength, and hinged construction for fast, simple installation.
 No more stripped bolt heads common of 3-piece designs.

Multi-Fit: 1-1/2" Engine Guards or Tubing
Multi-Fit Note: All Magnum Quick Clamps have a 1/2" hole for peg mount.