Comparison : Item # 01-26-40, 26 Series: .125 Board Hole x .187 Chassis Hole
Item # 01-26-50, 26 Series: .125 Board Hole x .187 Chassis Hole
Item # 01-26-60, 26 Series: .125 Board Hole x .187 Chassis Hole
Item # 01-26-70, 26 Series: .125 Board Hole x .187 Chassis Hole
Item # 01-26-80, 26 Series: .125 Board Hole x .187 Chassis Hole