API AC101B Black Mounting Clamp for Truck Caps / Camper Shells (1 Clamp) General purpose clamp designed to mount truck caps on many pick-up truck models Constructed of tempered aluminum with attractive black semi-gloss powder coated finish Complete installation guide A = 1" B = 1 1/2" C = 0" - 7/8" (See technical drawing above) Made in the USA