Double U Bolt 1.5 Inch Mount Base For Rails 0.75 To 1.21 Inch Diameter Compatible With C Size 1.5 Inch Double Socket Arm For Handlebar And Boat Pole Ball Head Upgrade For Anti Loosening Vibration Resistant Performance And Higher Load Capacity

Secure 1.5 inch mount base for rails with double U bolts
✔️ 1.5 inch base fits 0.75-1.21 inch tubes; double U-bolts secure

This 1.5 inch double U bolt base delivers a strong, vibration-resistant mounting option for round rails on boats, ATVs, motorcycles, bicycles, and more. It works with C-type 1.5 inch dual socket arms to unlock flexible mounting configurations.

✅ Double stainless steel U-bolts grip 0.75-1.21 inch (19-31 mm) tubes for a secure lock
✅ 1.5 inch ball head upgrade reduces loosening under vibration
✅ Compatible with C-type 1.5 inch dual socket arms for fishfinder, tablet, and device mounts
✅ Includes 2 U bolts, 4 lock nuts, 4 rubber caps, 1.5 inch dual-U base, 4 spacers
✅ Ideal for handlebars, boat poles, or any round rails on ATVs, UTVs, or boats

💡 What is a 1.5 inch mounting base used for on round rails and how does the U bolt setup help? This handy question is answered with practical, general guidance. - Ideal for securing fishfinders, tablets, GPS devices, or cameras to handlebars, rails, or poles - The 1.5 inch dual socket arm compatibility lets you adjust angles for optimal viewing - Double U bolts grip 0.75-1.21 inch tubes (19-31 mm) for a tight, vibration-resistant hold - The ball head upgrade minimizes loosening due to vibration in boats or off-road rides