The Truth Hardware (AmesburyTruth) 23.00 Series Left Hand Single Arm Casement Operator is a commercial-grade crank designed for smooth and secure operation of casement windows. Featuring a 9-1/2" link arm and stainless steel roller, this operator delivers a full 90° sash opening when paired with AmesburyTruth 14 Series Casement Hinges or 35 Series 4-Bar Hinges.
Constructed with a high-pressure die-cast zinc housing and hardened steel components with an E-Gard® protective coating, the 23.00 is built for strength, longevity, and resistance to corrosion.
Available in both rear-mount and face-mount configurations—please select the correct mounting style before ordering.
This operator is commonly (but not always) identified with stamp 40050, with some variants marked 40050A or 40050B.