12" Edge Bunk Brackets . Heavy 11-gauge hot-dip galvanized steel brackets mount 2" X 4" bunks on edge. Slotted for vertical adjustment to fit standard or deep-V hulls. 12-5/8" OAL with a 9-1/8" slot which accepts up to 1/2" dia thru bolts or U-bolt mounting hardware.Made in U.S.A. Sold as each