Heavy Duty Low Profile Wand Tilt Gear Mechanism (1/4" Hex Hole)
Graber/Bali/Nanik Low Profile Wand Tilt Mechanism - 1/4in Square
Levolor LouverDrape Zirlon Vertical Blind Thumb Lock Bracket
High Profile Wand Tilt Mechanism (1/4in Square Hole) (Clear)