Cast Suffolk LatchTraditionally used on a ledge and braced door, our thumb latch sets include a decorative door latch with a thumb shaped lever. When this lever is pressed down, it operates a thumb bar. The thumb bar passes through the door, lifting the latch bar on the opposite side and allowing the door to open. A decorative cast thumblatch with backplate. Maximum door thickness: 44mm. Maximum door thickness: 44mm. Supplied with matching SS wood screws.