API DA102P6 Mounting Clamps & Topper Tape for Truck Caps / Camper Shells (Set of 6) General purpose clamp designed to mount truck caps on many pick-up truck models Constructed of tempered aluminum with a Mill Finish Complete installation guide A = 1-3/8" B = 1-7/8" C = 0" - 2" (See technical drawing above) Made in the USA